The American Psychological Association is the only organization that can approve psychological research studies.
ОТ
OF

Answers

Answer 1

Answer: This is False.

Explanation:

Answer 2

Answer:

False

Explanation:

:)


Related Questions

Show that matrix A is diagonalizable and R an invertible matrix p with entries in that the diagonal matrix D is given by D = P¹ AP 1 6 - 12 -13 30 O -9 20 * use the diagolization method to find A4 1 -1 2 * You Can use without prove. 3 -5 find Such ·001 (£ - (^-^) (A มา -2

Answers

To show that matrix A is diagonalizable, we need to demonstrate that there exists an invertible matrix P such that the diagonal matrix D is given by D = P^(-1)AP, where D represents the eigenvalues of A along its diagonal.

Given the matrix D =

```

1  6

0 -9

```

We can see that the eigenvalues of A are λ₁ = 1 and λ₂ = -9.

To find matrix P, we need to find the corresponding eigenvectors for each eigenvalue. Let's denote the eigenvector for λ₁ as v₁ and the eigenvector for λ₂ as v₂.

For λ₁ = 1, we solve the equation (A - λ₁I)v₁ = 0, where I is the identity matrix:

```

A - λ₁I =

1 -1  2

3 -5  0

(A - λ₁I)v₁ =

1 -1  2

3 -5  0  * v₁ = 0

This system of equations can be solved to find v₁ = [2, 1]ᵀ.

```

For λ₂ = -9, we solve the equation (A - λ₂I)v₂ = 0:

``

A - λ₂I =

1 -1  2

3 -5  0

(A - λ₂I)v₂ =

1 -1  2

3 -5  0  * v₂ = 0

This system of equations can be solved to find v₂ = [-1, 3]ᵀ.

``

Now that we have the eigenvectors v₁ and v₂, we can form matrix P using these vectors as columns:

```

P = [v₁, v₂] =

2 -1

1  3

```

Finally, we can calculate A^4 using the diagonalization method:

```

A^4 = (PDP^(-1))^4 = P D^4 P^(-1)

Since D is a diagonal matrix, we can simply raise each diagonal entry to the fourth power:

D^4 =

1^4  0

 0   (-9)^4

    =

1  0

0  6561

Therefore,

A^4 = P D^4 P^(-1) =

2 -1   *   1  0   *   2 -1

1  3       0  6561       1  3

       =

2 -1   *   2 -1   =   4 -2

1  3       1  3         5  7

```

Thus, A^4 is equal to the matrix

```

4 -2

5  7

```

This is the result obtained using the diagonalization method.

Learn more about diagonalization method here:

https://brainly.com/question/30402418

#SPJ11

calculate the efficiency of a light bulb that had an input of 400 j transfers 100j as a light and 300j as heat.​

Answers

Efficiency = useful energy out / total energy in x 100
= 100/400 x 100
=0.25 x 100
= 25%

25%

What is energy efficiency in dishwater?

Answers

Dishwashers' efficiency to use energy more effectively can lead to decreased energy bills and a lessening of their negative effects on the environment.

Dishwasher energy efficiency is normally assessed using a standardized rating system that takes into account a number of variables, such as the quantity of water used, the energy needed to heat the water, and the amount of energy consumed by the dishwasher's engine and other parts.

More energy-efficient dishwashers are often made to use less electricity and water, which may save a lot of money over time.

Moreover, some energy-saving dishwashers could include extra features like dirt sensors and delayed start choices that can improve their efficiency while using less electricity.

Learn more about efficiency at

https://brainly.com/question/28939461

#SPJ4

what are the two elements used most often to make semiconductors?

Answers

The two elements most commonly used to make semiconductors are silicon and germanium.

Answer: Silicon and Germanium

Explanation: They are used as such because

                           1. More stability at high temperature

                           2. Reverse current is low

                           3. Easily available

why does a canvas tent leak when touched when it's raining​

Answers

A canvas tent leaks when it is touched due to moisture

A 1 kg apple and a 2 kg baseball are 2 m apart. What is the force of gravity between each fruit?

Answers

Answer:

\(\boxed {\boxed {\sf 3.335 \times 10^{-11} \ N}}\)

Explanation:

We are asked to find the force of gravity between 2 objects. The following formula is used to calculate the attractive force of gravity:

\(F_g= \frac{Gm_1m_2}{r^2}\)

G is the universal gravitational constant or 6.67 × 10⁻¹¹ N*m²/kg². 1 mass is 1 kilogram and the other mass is 2 kilograms. R is the distance between the 2 objects, or 2 meters.

G= 6.67 × 10⁻¹¹ N*m²/kg²m₁ = 1 kg m₂ = 2 kg r= 2 m

Substitute the values into the formula.

\(F_g= \frac {(6.67 \times 10^{-11} \ N*m^2/kg^2)(1 \ kg)(2\ kg)}{( 2 \ m)^2}\)

Multiply the numerator. The units of kilograms squared cancel.

\(F_g= \frac {(6.67 \times 10^{-11} \ N*m^2/kg^2)(2 kg^2)}{(2 \ m)^2}\)

\(F_g= \frac {(6.67 \times 10^{-11} \ N*m^2)(2 )}{( 2 \ m)^2}\)

\(F_g= \frac {(1.334 \times 10^{-10} \ N*m^2)}{ (2 \ m)^2}\)

Solve the exponent in the denominator.

(2 m)²= 2 m*2m = 4 m²

\(F_g =\frac {(1.334 \times 10^{-10} \ N*m^2)}{ 4 \ m^2}\)

The units of meters squared cancel.

\(F_g =\frac {(1.334 \times 10^{-10} \ N)}{ 4}\)

\(F_g=3.335 \times 10^{-11} \ N\)

The force of gravity between the fruit is 3.335 × 10⁺¹¹ Newtons.

what is the acceleration if a 5 kg cart is pushed with 30 N of force?

Answers

Answer:

6 m/s²

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

\(a = \frac{f}{m} \\ \)

f is the force

m is the mass

From the question we have

\(a = \frac{30}{5} \\ \)

We have the final answer as

6 m/s²

Hope this helps you

which variables(s) will not be used in calculating the electric potential at points a and b?a. q1b. q2c. q3d. q4e. s

Answers

To determine which variables will not be used in calculating the electric potential at points a and b, it is important to first understand the equation for electric potential.

The electric potential at a point is equal to the potential energy per unit charge at that point. The equation is given as V = U/q, where V is the electric potential, U is the potential energy, and q is the charge.

Looking at the given variables, we have q1, q2, q3, q4, and s. q1, q2, q3, and q4 represent charges while s is the distance between the charges. To calculate the electric potential at points a and b, we need to know the values of the charges and the distances between them.

Based on this information, it can be concluded that the variable 's' will not be used in calculating the electric potential at points a and b. This is because the variable 's' only represents the distance between the charges and does not provide any information on the charges themselves. However, the charges q1, q2, q3, and q4 are crucial in calculating the electric potential at points a and b.

Therefore, to calculate the electric potential at points a and b, we need to know the values of the charges q1, q2, q3, and q4, and the distances between them. The variable 's' is not necessary for this calculation as it only represents the distance between the charges and not the charges themselves.

For more such questions on variables

https://brainly.com/question/82796

#SPJ11

Using this system, how much input force would be needed to lift a 500-N load?

Answers

Minimum of 166.67-N input force would be required to lift a 500-N load using this system.  To calculate the input force required to lift a 500-N load, we need to use the system of mechanical advantage.

The mechanical advantage can be defined as the ratio of the load resistance (output force) to the applied effort force (input force).

Mechanical Advantage = Load Resistance/ Effort force

MA = LR/EF

It is given that the load is 500-N. To calculate the effort force, we need to determine the mechanical advantage of the system.

Let's assume the mechanical advantage of the system is 3:1. This implies that for every 3 units of load resistance, we need to apply 1 unit of effort force.

MA = 3:1LR

= 500-NEF

MA = LR/EF3

= 500/EF3 × EF

= 500EF

= 500/3EF

= 166.67-NA

Minimum of 166.67-N input force would be required to lift a 500-N load using this system.

To know more about input force, refer

https://brainly.com/question/2902811

#SPJ11

ACTIVITY 4
Applying the equation learned, answer the following problems:

1. A bowling ball whose mass is 4.0 kg is rolling at a rate of 2.5 m/s. What is its momentum? p = m/s. What Is Its Momentum?

Given:

Find:

Formula:

Solution:

2. A skateboard is rolling at a velocity of 3.0 m/s with a momentum of 6.0 kg-m/s. What is its mass?

Given:

Find:

Formula:

Solution:

3. A pitcher throws a baseball with a mass of 0.5 kg and a momentum of 10 kg-m/s. What is its velocity?

Given:

Find:

Formula:

Solution:​

Subject Is Science

Good Perfect Complete=Brainlist

Copy Wrong Incomplete=Report

Good Luck Answer Brainly Users:⁠-)

ACTIVITY 4Applying the equation learned, answer the following problems: 1. A bowling ball whose mass

Answers

Answer:

1)  10 kg-m/s

2)  2 kg

3)  20 m/s

Explanation:

The momentum of an object can be calculated using the equation:

\(\large\boxed{p=mv}\)

where:

p is momentum (measured in kilogram meters per second).m is mass (measured in kilograms).v is the velocity (measured in meters per second).

\(\hrulefill\)

Question 1

For this question we need to find the momentum of a bowling ball whose mass is 4.0 kg is rolling at a rate of 2.5 m/s.

Given values:

m = 4.0 kgv = 2.5 m/s

Substitute the given values into the momentum formula and solve for p:

\(p=4.0\;\text{kg} \cdot 2.5\;\text{m/s}\)

\(p=10\;\text{kg m/s}\)

Therefore, the momentum of the bowling ball is 10 kg-m/s.

\(\hrulefill\)

Question 2

For this question we need to find the mass of a skateboard rolling at a velocity of 3.0 m/s with a momentum of 6.0 kg-m/s.

Given values:

p = 6.0 kg-m/sv = 3.0 m/s

As we want to find mass, rearrange the momentum formula to isolate m:

\(\large\boxed{m=\dfrac{p}{v}}\)

Substitute the given values into the formula and solve for m:

\(m=\dfrac{6.0\; \text{kg m/s}}{3.0\; \text{m/s}}\)

\(m=2\;\text{kg}\)

Therefore, the mass of the skateboard is 2 kg.

\(\hrulefill\)

Question 3

For this question we need to find the velocity of a baseball with a mass of 0.5 kg and a momentum of 10 kg-m/s.

Given values:

p = 10 kg-m/sm = 0.5 kg

As we want to find velocity, rearrange the momentum formula to isolate v:

\(\large\boxed{v=\dfrac{p}{m}}\)

Substitute the given values into the formula and solve for v:

\(v=\dfrac{10\; \text{kg m/s}}{0.5\; \text{kg}}\)

\(v=20\;\text{m/s}\)

Therefore, the velocity of the baseball is 20 m/s.

the building block of all elements and the smallest component into which an element can be divided?
a. building blocks
b. element
c. A molecule
d. atom

Answers

The building block of all elements and the smallest component into which an element can be divided d. atom

What is the smallest energy building block?

Quarks, the universe's tiniest particles, are significantly smaller and have far greater energy levels than the protons and neutrons in which they are found.

An atom is the smallest unit of an element that retains all of its characteristics.

However, atoms include several subatomic particles, the most significant of which are protons, neutrons, and electrons.

learn more about subatomic particles

https://brainly.com/question/16847839

#SPJ1

for an object moving at constant velocity, which statement best describes the force acting on it?

Answers

For an object moving at constant velocity, the force acting on it must be balanced. This means that the force pushing the object forward is equal to the force resisting its motion, resulting in a net force of zero. This is why the object maintains a constant velocity and does not accelerate.

For an object moving at constant velocity, the statement that best describes the force acting on it is: "The net force acting on the object is zero." This is because, according to Newton's first law of motion, an object in motion will continue to move at a constant velocity unless acted upon by an unbalanced force. If the net force is zero, it means that all the forces acting on the object are balanced, and the object maintains its constant velocity.

To know more about Newton's first law of motion Visit:

https://brainly.com/question/974124

#SPJ11

Can someone help with this problem on angular acceleration/tension? Im not sure how to do the tension and i keep getting double the correct answer on the angular acceleration (65.3)

Answers

In order to solve for angular acceleration and tension in a problem, you typically need to use Newton's second law for rotational motion. This law states that the sum of torques acting on an object equals the moment of inertia times the angular acceleration.

The torque is equal to the force times the distance from the axis of rotation.

To solve for tension, you'll need to identify all the forces acting on the object and determine the net force acting in the direction of motion. If the object is moving in a circle, you'll need to calculate the centripetal force required to keep it moving in a circle. This force is equal to the mass times the centripetal acceleration, which is equal to the radius times the square of the angular velocity.

As for your issue with the angular acceleration, it's hard to say what might be causing the problem without seeing the specific problem you're working on. However, make sure you're using the correct formula for angular acceleration (which is equal to the change in angular velocity divided by the time interval) and that you're converting units correctly.

I hope this helps! Let me know if you have any other questions.

To know more about tension  visit

https://brainly.com/question/20908916

#SPJ11

The Fastest Moving Planet In A Solar System Is:? A. The Smallest Planet. B. Any Planet, Because They All Move At The Same Speed. C. The Planet Nearest The Sun. D. The Planet Farthest From The Sun.

Answers

The planet that moves the fastest in a solar system is the planet nearest the Sun.

The correct option is C. The Planet Nearest The Sun.

What is a Solar System?

A solar system is a collection of planets, moons, comets, asteroids, and other objects that revolve around a single star. The sun is the center of our solar system, and it includes all of the matter and energy that orbits around it, including Earth and all the other planets.

Sun, the star around which Earth and the other planets of the solar system revolve, has a huge gravitational field. Planets move around the sun in a fixed orbit at varying speeds, depending on their distance from the sun. Because planets are closer to the sun, their gravitational pull is greater, resulting in a faster orbital speed for them.

The planet nearest the sun in the solar system is Mercury. Due to its proximity to the sun, it orbits at a speed of around 48 km/s, making it the fastest planet in the solar system, with an orbital period of 88 Earth days.

learn more about solar system on

https://brainly.com/question/2564537

#SPJ11

If a fisherman applies a horizontal force with magnitude 43.5 nn to the box and produces an acceleration of magnitude 3.30 m/s2m/s2, what is the mass of the box?

Answers

The mass of the box which the fisherman applies a horizontal force is 13.18 Kg

To solve this exercise, the formula and procedure to be applied are:

F = m * a

Where:

m = massF = Forcea = acceleration

Information about the problem:

a= 3.30 m/s2F=  43.5 N1 N = kg * m/s²m = ?

Applying the force formula and isolating the mass, we get:

F = m * a

m = F/a

m = 43.5 Kg * m/s² / 3.30 m/s2

m = 13.18 Kg

What is force?

It is the physical magnitude that expresses the effort necessary to move the mass of one kilogram with an acceleration of one meter per second squared, this is expressed in units of the international system in Newton.

Learn more about force at: brainly.com/question/12970081

#SPJ4

If a fisherman applies a horizontal force with magnitude 43.5 nn to the box and produces an acceleration

a) How far did the vehicle travel in total? ​
I need help on how to count each distance please

a) How far did the vehicle travel in total? I need help on how to count each distance please

Answers

The total distance travelled during the vehicle's journey as found from the speed-time graph is 6.125 m

V = d / t

V = ( u + v ) / 2

V = Average Speed

d = Distance

t = Time

u = Initial velocity

v = Final velocity

During the first 0.5 s, u = 0 and v = 1 m / s.

d = ( 0 + 1 ) * 0.5 / 2

d = 0.25 m

During the next 0.5 s, u and v are equal meaning constant velocity ( V = 1 m / s ).

d = 1 * 0.5

d = 0.5 m

During the next 1 s, u = 1 m / s and v = 1.5 m / s.

d = ( 1 + 1.5 ) * 1 / 2

d = 1.25 m

During the next 2.5 s, u and v are equal meaning constant velocity ( V = 1.5 m / s ).

d = 1.5 * 2.5

d = 3.75 m

During the next 0.5 s, u = 1.5 m / s and v = 0.

d = ( 1.5 + 0 ) * 0.5 / 2

d = 0.375 m

Total distance travelled is the sum of all the individual distances calculated.

Total distance travelled = 0.25 + 0.5 + 1.25 + 3.75 + 0.375

Total distance travelled = 6.125 m

Therefore, the total distance travelled during the vehicle's journey as found from the speed-time graph is 6.125 m

To know more about speed-time graph

https://brainly.com/question/16825120

#SPJ1

A net force of 153 N accelerates a 22.0 kg mass. What is the resulting acceleration?

Answers

The resulting acceleration is 6.95 m/s².

Net force (F) = 153 N

Mass (m) = 22.0 kg

To find the resulting acceleration (a), we can use Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. The equation can be written as:

F = m * a

Rearranging the equation, we have:

a = F / m

Substituting the given values, we get:

a = 153 N / 22.0 kg

Evaluating the expression, we find:

a ≈ 6.95 m/s²

Therefore, the resulting acceleration is approximately 6.95 m/s².

For more such questions on acceleration, click on:

https://brainly.com/question/460763

#SPJ8

Assuming the circulatory system in humans obeys Bernoulli's principle of fluid dynamics, which of the statements most accurately compares the blood pressure in a capillary of the neck to a capillary with an equal cross-sectional area in the right knee? a). The pressure in the neck is greater than the pressure in the knee because of the increase in pressure head b). The pressure in the neck is equal to the pressure in the knee because of the equal dynamic pressure according to the continuity equation c). The pressure in the knee is greater than the pressure in the neck because of the increase in pressure head d). An accurate comparison cannot be given without knowledge of the fluid's density and viscosity

Answers

Option B: The pressure in the neck is equal to the pressure in the knee because of the equal dynamic pressure according to the continuity equation is the answer.

Assuming that the human circulatory system obeys Bernoulli's principle of hydrodynamics, the most accurate comparison of blood pressure in capillaries in the neck and those of equal cross-sectional area in the right knee yields: The neck pressure equals the knee pressure with the same dynamic pressure according to the continuity equation. The Bernoulli equation describes the flow of an incompressible fluid in a pipe and how that flow is affected by changes in pressure. 

In this case, it can be applied to the flow of blood through capillaries in the neck and right knee. The continuity equation, which states that the volume flow rate of fluid through a tube must remain constant, regardless of changes in the tube's cross-sectional area or shape, can also be applied in this case. Because the two capillaries have the same cross-sectional area, the dynamic pressure in both capillaries must be the same because of the continuity equation. This indicates that the pressure in the neck is equal to the pressure in the knee.

know more about Bernoulli's equation

https://brainly.com/question/30504672

#SPJ11

Which statement is true about an electromagnetic wave thathas a short wavelength?

Answers

It's important to know that the wavelength and the frequency has inverse relationship, which means the longest is its wavelength, the more intense will be the frequency.

Hence, the answer is B.

How can the Fitness Logs help you in this class?
OA. They can't; the Fitness Logs are only useful to your teacher.
B. They help you evaluate yourself for your final grade.
C. They let you keep track of your thoughts, feelings, and progress.
D. They show your parents how much you're learning.

Answers

Answer:B

Explanation:They help you evaluate yourself for your final grade.

a dont make sense, d dont make sense, B or C. B!

Which quantities have both a magnitude and direction? A. velocity B. displacement C. distance D. mass E. acceleration

Answers

Answer:

A) Velocity

U 2 can help me by marking as brainliest........

Answer:

A) Velocity

Explanation:

They Have both a magnitude and direction ..

help me by marking as brainliest...

how high is the man's well-focused image on the ccd detector? express your answer with the appropriate units.

Answers

To determine the exact height of the man's image on the CCD detector, you would need to know the specific details of the imaging system and the distances involved.

What is height ?

Height is the measurement of vertical distance or elevation relative to a reference level, such as sea level. A person's height is measure from the bottom of their feet to the top of their head. Height is an important indicator of health and overall physical development in individuals. Height is also an important factor in determining physical attractiveness and social standing.

We need to take into account the optical characteristics of the imaging equipment and the positioning of the guy in relation to the detector to estimate how high the well-focused image of the man is on the CCD detector.

The focal length of the lens being used, the separation between the subject and the lens, and the size of the CCD detector are just a few of the variables that will affect how tall the subject appears on the CCD detector.

Generally speaking, the magnification formula can be used to determine the height of the image:

(Image Distance / Object Distance) * (Object Height) = Image Height

Where:

The man's actual height is indicated by the term "object height."

The distance between the lens and the CCD detector is known as the image distance.

The distance between the subject and the lens is known as object distance.

However, a numerical solution cannot be given in the absence of precise values for these variables. You would need to be aware of the precise specifications of the imaging system and the distances involved to calculate the precise height of the man's picture on the CCD detector.

To determine the exact height of the man's image on the CCD detector, you would need to know the specific details of the imaging system and the distances involved.

complete question:

How high is the man's well-focused image on the CCD detector?

To learn more about height

https://brainly.com/question/30620889

#SPJ4

Complete Question:
In (Figure 1) the camera lens has a 54 mm focal length.
How high is the man's well-focused image on the CCD detector?
Express your answer to two significant figures and include the appropriate units.

You might need: CalculatorA box moves 5 m horizontally when force F 20 N is applied at angle 45 degree to the horizontalWhat is the work done on the box by F during the displacement?Choose 1 answer:

Answers

Given data:

* the displacement of the box in the horizontal direction is 5 m.

* The force applied on the box at an angle of 45 degree is 20 N.

Solution:

The representation of the given system is,

The work done by the force during the displacement is,

\(\begin{gathered} W=F\cdot d \\ W=Fd\cos (45^{\circ}) \end{gathered}\)

Substituting the known values,

\(\begin{gathered} W=20\times5\times\cos (45^{\circ}) \\ W=70.71\text{ J} \end{gathered}\)

Thus, the work done on the box by the force F during the given displacement is 70.71 J.

You might need: CalculatorA box moves 5 m horizontally when force F 20 N is applied at angle 45 degree

If you walk at an average speed of 5 km/h for 30 minutes, how
far will you walk? (Write your answer with Sl unit.

Answers

Time= s/v

Speed =5km/h
Time=30min
Distance is required
Distance=time*speed
30min*5km/h=600m

if a body starts from rest and attains a velocity of 20 metre per second in 8 seconds find the acceleration produced in the body​

Answers

Answer:

2.5 m/s^2

Explanation:

the equation to find acceleration is \(\frac{v - v_{0} }{t}\) where \(v_{0}\) is the initial velocity, v is the current velocity, and t is the total time

so plug in your values: \(\frac{20 - 0}{8}\)

that turns into 20 ÷ 8

this equals 2.5 m/s^2

Please help me ASAP...

A train increases its speed steadily from 10 m/s to 20 m/s in 1 minute.

a What is its average speed during this time, in m/s?

b How far does it travel while increasing its speed?

Answers

Answer:

A: 15 m/s

B: 900 Meters

Explanation:

A. Average speed is equal to final velocity plus initial velocity divided by two

Va= (20+10)/2 = 15 m/s

B.

distance = speed × time

D= 15 m/s * 60s = 900 Meters

Answer:

Answer is in the attachment.

Explanation:

Hope this helps.

Please mark me as Brainliest.

Please help me ASAP...A train increases its speed steadily from 10 m/s to 20 m/s in 1 minute. a What
Please help me ASAP...A train increases its speed steadily from 10 m/s to 20 m/s in 1 minute. a What

What is the net displacement of the particle between 0 seconds and 80 seconds?


Choices:

A. 160 meters

B. 80 meters

C. 40 meters

D. 20 meters

E. 0 meters

Answers

The correct option is D, The net displacement of the particle between 0 seconds and 80 seconds is 20 meters.

Displacement refers to the distance and direction between an initial point and a final point of an object or particle. It is a vector quantity, meaning that it has both magnitude and direction. Displacement can be calculated by subtracting the initial position vector from the final position vector. For example, if an object moves from point A to point B, the displacement vector is the vector that goes from point A to point B.

Displacement is different from distance traveled, which is the total length of the path taken by an object between two points. Displacement takes into account the direction of motion and the final position of the object, while distance traveled does not. Displacement is often used in physics to describe the motion of objects, and is commonly measured in meters or feet.

To learn more about Displacement visit here:

brainly.com/question/30087445

#SPJ4

a 190-lb man carries a 20-lb can of paint up a helical staircase that encircles a silo with radius 15 ft. if the silo is 80 ft high and the man makes exactly four complete revolutions, how much work is done by the man against gravity in climbing to the top?

Answers

The work done by the man against gravity in climbing to the top is 9,480 foot-pounds.

To calculate the work done by the man, we need to determine the total change in potential energy as he climbs up the helical staircase that encircles the silo. The potential energy can be calculated using the formula PE = mgh, where m represents the mass, g represents the acceleration due to gravity, and h represents the height.

In this case, the mass of the man is 190 lb, and the height of the silo is 80 ft. Since the man makes exactly four complete revolutions around the silo, we can calculate the circumference of the helical staircase. The circumference of a circle is given by the formula C = 2πr, where r represents the radius. In this case, the radius of the silo is 15 ft.

To find the work done against gravity, we need to multiply the change in potential energy by the number of revolutions. The change in potential energy is obtained by multiplying the mass, the acceleration due to gravity (32.2 ft/s²), and the height. The number of revolutions is four.

Therefore, the work done by the man against gravity in climbing to the top can be calculated as follows:

Work = 4 * m * g * h

    = 4 * 190 lb * 32.2 ft/s² * 80 ft

    = 9,480 foot-pounds.

Learn more about Work

brainly.com/question/18094932

#SPJ11

Please Help! WILL GIVE BRAINLIEST IF ANSEWR IS CORRECT!!!
(See picture for question.)

Please Help! WILL GIVE BRAINLIEST IF ANSEWR IS CORRECT!!!(See picture for question.)

Answers

Gravity increases when mass increases and distance decreases. Gravity decreases when mass decreases and distance increases.

Answer:

graity decreses the further you get from earth so ifmas decreses gravity will be les if mas increses it will de mor efective and it distence increses gravity will decrease if distence decreses gravity will increase

Explanation:

(A) V = ΣkQ/r and since both charges are positive, the largest potential is at the closest point to the two charges (it is more mathematically complex than that, but this reasoning works for the
choices given)
Two positive charges of magnitude q are each a distance d from the origin A of a coordinate system as shown
above.

At which of the following points is the electric potential greatest in magnitude?
(A) A (B) B (C) C (D) D (E) E

Answers

The electric potential greatest in magnitude is point B. The correct option is B.

The electric potential at a point due to a point charge Q is given by the equation:

V = k * Q / r

where k is the Coulomb constant, Q is the charge, and r is the distance from the point charge.

For the two positive charges in the given scenario, the electric potential at any point is the sum of the electric potentials due to each individual charge:

V = k * q / r1 + k * q / r2

where r1 is the distance from point A to the first charge, r2 is the distance from point A to the second charge, and q is the magnitude of each charge.

Since both charges are positive, the potential at any point will be positive, and the magnitude of the potential will increase as the distance from the charges decreases.

At point A, the distances to both charges are equal to d, so the potential is:

V(A) = 2 * k * q / d

At point B, the distance to one charge is d and the distance to the other charge is sqrt(2) * d (by using the Pythagorean theorem), so the potential is:

V(B) = k * q / d + k * q / (sqrt(2) * d)

Since sqrt(2) > 1, the potential at point B is greater than the potential at point A.

At point C, the distance to one charge is d and the distance to the other charge is 2d, so the potential is:

V(C) = k * q / d + k * q / (2d)

This is less than the potential at point B.

At point D, the distance to one charge is sqrt(2) * d and the distance to the other charge is d, so the potential is:

V(D) = k * q / (sqrt(2) * d) + k * q / d

This is also less than the potential at point B.

At point E, the distance to both charges is sqrt(2) * d, so the potential is:

V(E) = 2 * k * q / (sqrt(2) * d)

This is less than the potential at point B.

Therefore, the correct answer is (B) point B, where the potential is greatest in magnitude.

To know more about the Electric field click :

brainly.com/question/8971780

#SPJ4

Other Questions
if you predict the population of Hamilton County in 2003, are you interpolating or extrapolating? Find the volume of the prism where B is the base area. Att8MAccording to the reading titled, Film and American Political Culture - Which presidential candidate madereferences to three movies in a single speech to a group of law enforcement officials (referring to EasyRider: Sudden Impact; and West Side Story). what would happen if there was no use of SI system in all over the world by the general conference of scientist mention any three assumptions. Place the events of a contraction cycle in the order in which they occur: 1. ATP hydrolysis 2. detachment of myosin head from actin, binding of ATP 3. power stroke driving sarcomere contraction, release of ADP 4. cross-bridge formation between myosin heads and actin active site AnswersO 1, 4, 3, 2 O 1, 4, 2, 3 O 1. 3, 4, 2 O 1, 3, 2, 4 O 1, 2, 3, 4 Umm is this right or wrong and if it's wrong can you tell me the right answer? What is the answer to 8h+7 (2+4h) Help please the picture is above. There are 2.54 centimeters in 1 inch. There are 100 centimeters in 1 meter.To the nearest meter, how many meters are in 197 inches? Enter the answer in the box.meters The ___ was a 980-building complex built in classic Chinese architecture for the emperor. Forbidden City Land on the Clouds Grand Temple Sacred House what function is first called for removing a node from an avl tree? group of answer choices bstsearch avltreegetbalance avltreerebalance avltreeremovenode refer to the accompanying table. according to the cost-benefit principle, how many units of this activity should be carried out? units of activity total cost total benefit 0 $ 0 $ 0 1 2 12 2 6 22 3 12 30 4 20 36 5 30 40 6 42 42 7 56 43 In many states it is illegal to lend money to help someone gamble. a. true b. false How to Create 3D Plant Cell and Animal Cell Models for Science Class. Liza and Kelly rode their bikes everyday for five days. They each rode the same distance everyday. Lisa rode 60 miles in all and Kelly rode 25 miles in all. How many more miles per day did Lisa ride than Kelly? harper wants to exchange 350 for dollars, how many more dollars would she get in the bank than in the post office post office: 1 = $1.27 Bank:1 = $1.34 Brice has 400 toy cars. Of the toy cars, 15% are red, 40% are green, and the rest are multicolor.How many toy cars are multicolor?O 160O 60O 180100 The two sides of the DNA ladder are connected down the middle by many _______ bonds. * Answer the question on the basis of the following production possibilities table for two countries, North Cantina and South Cantina.Refer to the table. If South Cantina is producing at production alternative F, the opportunity cost of the first unit of capital goods will beA.1/2 of a unit of consumer goods.B.1 unit of consumer goods.C.27 units of consumer goods.D.2 units of consumer goods. Suppose that Yt follows the stationary AR (1) model Y = 2.5 +0.7Y-1 + t, where & is i.i.d. with E(&t) = 0 and Var(t) = 9. a) Compute the mean and variance of Y b) Compute the first two autocovariances of Yt c) Compute the first two autocorrelations of Y d) Suppose that YT = 102.3. Compute YT+1\T Yr+1r = E(Yr+1|Yr,Yr-1,)