Forces and Motion:Question 5 A force of 20 N acts upon a 5 kg block. Calculate the acceleration of the object​

Explanation:

The density of silver is 10.5g/cm3

=2500.0g/10.5g/cm3

=238.09cm3

238.1cm3 to nearest tenth.

I hope my answer helps. Please mark as brainliest.

There are three primary ways of interpreting the nature vs nurture debate: Environmental Determinism, Biological Determinism and Interactionism.

Environmental Determinism is the first one. The environment, according to this theory, determines a person's behavior. The premise behind this idea is that humans are born as blank slates and that everything they know is learned through experience. Environmental determinists argue that people's experiences and surroundings are the only factors that shape their behavior. Nurture has the upper hand in this view.

Biological Determinism is the second way of interpreting the nature vs nurture debate. This theory argues that our genes and biology determine our behavior. Those who believe in biological determinism contend that our genes determine everything from our personality traits to our interests. Nature wins out in this view.

Interactionism is the third way of interpreting the nature vs nurture debate. This perspective takes into account the notion that both nature and nurture influence human behavior. This theory argues that human behavior is the product of both nature and nurture, with neither being the dominant factor. In this view, the environment and genetics are viewed as mutually influential rather than exclusive factors.

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The correct unit of charge is coulombs (C).

Charge is measured in coulombs, which is the standard unit for electric charge in the International System of Units (SI).

Amperes (A) measure electric current, volts (V) measure electric potential difference, and newtons (N) measure force.
The correct answer to your question is coulombs (c).

Summary: Among the given options, coulombs (C) are the correct units of charge.

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a. upward. The rider is upside down at the top of the loop, and the seatbelt provides a centripetal force that pulls the rider upward toward the center of the circle, allowing them to follow a circular path.

Centripetal force is a type of force that acts on an object moving in a circular path. It is directed towards the center of the circle and is necessary to keep the thing moving in a circular direction. The centripetal force can be provided by a variety of sources, such as tension in a rope, gravity, or a magnetic field. The magnitude of the centripetal force required depends on the mass of the object, the speed of the thing, and the radius of the circle.

The formula for centripetal force is

F = mv²/r,

where F is the force, m is the mass of the object, v is the velocity of the object, and r is the radius of the circle. Centripetal force is an essential concept in many areas of physics, including mechanics, astrophysics, and engineering, and it plays a significant role in the functioning of many natural and man-made systems, such as planetary orbits, and centrifuges.

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Degrees between the melting point of ice and boiling point of water on the Celsius scale, Fahrenheit scale, and Kelvin scale are 100°C, 180°F, and 100K. respectively.

The number of degrees between the melting point of ice and boiling point of water on the Celsius scale, Fahrenheit scale, and Kelvin scale are given below.

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The  statement that adding yeast to a new septic tank speeds up digestion by a factor of 2.7 is not true.

Adding yeast to a new septic tank is not likely to speed up digestion, as the primary function of yeast is to ferment sugars into alcohol and carbon dioxide, rather than to break down waste materials. In fact, adding yeast to a septic tank may disrupt the natural balance of bacteria and other microorganisms that are responsible for breaking down and processing the waste.

The process of digestion in a septic tank is primarily carried out by anaerobic bacteria, which break down organic matter in the absence of oxygen. The rate of digestion depends on a variety of factors, including the size and design of the tank, the nature and amount of waste materials being processed, and the temperature and pH of the tank environment.

Therefore, the statement that adding yeast to a new septic tank speeds up digestion by a factor of 2.7 is not true.

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Answer:

-0.75

Explanation:

Khan Academy gives answer here.

Answer: if upward force and thrust forward push, provided by a propeller get a plane into the air. Gravity and drag air resistance, which is friction caused by air rubbing against the plane try to pull the plane down and slow its speed

Explanation:

Answer:

If this is your question... the answer is C.

Explanation:

For edge:)

Answer:

C on edge2021

The internal energy of the gas can be obtained as  1373 J.

The total kinetic and potential energies of the individual molecules that make up a gas are referred to as the gas' internal energy.

In other words, it is the energy resulting from the gas particle's interactions and random motion.

We kn ow that the internal energy can be given by the formula;

U = q + w

U = internal energy

q = heat

w = work done

Thus;

w = pdV

w = 3 (4 -1)

w = 9atmL

Since

1 L atm = 101.325 J

9atm L = 912 J

Then;

U = 461 + 912

= 1373 J

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Answer:

In a longitudinal wave, the crest and trough of a transverse wave correspond respectively to the compression, and the rarefaction.

Explanation:

The vectors v = 3i + j and w = i - 3j are orthogonal.

To determine if two vectors are parallel, orthogonal, or neither, we can calculate their dot product. The dot product of two vectors, v and w, is given by v · w = (v₁)(w₁) + (v₂)(w₂) + (v₃)(w₃), where v₁, v₂, v₃ are the components of vector v and w₁, w₂, w₃ are the components of vector w.

In this case, v = 3i + j and w = i - 3j. The dot product is v · w = (3)(1) + (1)(-3) = 0. Since the dot product is zero, the vectors are orthogonal.

To find the angle between the vectors, we can use the formula cos(θ) = (v · w) / (||v|| ||w||), where θ is the angle between the vectors and ||v||, ||w|| are the magnitudes of the vectors.

The magnitudes of v and w are ||v|| = √(3² + 1²) = √10 and ||w|| = √(1² + (-3)²) = √10.

Plugging in the values, we get cos(θ) = 0 / (√10 * √10) = 0. Therefore, the angle between the vectors is θ = arccos(0) = 90 degrees.

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Answer:

Option B. is the best choice.

Explanation:

Static friction is a force that keeps an object at rest. It must be overcome to start moving the object. Once an object is in motion, it experiences kinetic friction.

B. Starting to pedal a bike that is stationary

Best Regards!

Answer:

I think that the answer is option B)

Explanation:

Answer:

Given,

Object distance, u=25cm

Focal length, f=20cm

From mirror formula

f

1

​

=

v

1

​

+

u

1

​

−20

1

​

=

v

1

​

−

25

1

​

⇒

v

1

​

=−

20

1

​

+

25

1

​

v=100cm

The image will be real, inverted magnified

Explanation:

Given,

Object distance, u=25cm

Focal length, f=20cm

From mirror formula

f

1

​

=

v

1

​

+

u

1

​

−20

1

​

=

v

1

​

−

25

1

​

⇒

v

1

​

=−

20

1

​

+

25

1

​

v=100cm

The image will be real, inverted magnified

The heat flow through the glass in 1.50 h is 20512.5 J, assuming conduction only.

The amount of heat flow through a material is given by the formula: Q = kAΔTt/d, where Q is the heat flow, k is the thermal conductivity, A is the area, ΔT is the temperature difference, t is the time, and d is the thickness.

In this case, the thermal conductivity of glass is about 0.8 W/(m∙K), the area is 1.80 m × 1.30 m = 2.34 m², the temperature difference is 7 °C, the time is 1.50 h, and the thickness is 3.20 mm = 0.0032 m.

Substituting these values into the formula, we get:

Q = (0.8 W/(m∙K)) × (2.34 m²) × (7 °C) × (1.50 h) / (0.0032 m)

Q = 20512.5 J

Therefore, the heat flow through the glass in 1.50 h is 20512.5 J.

To summarize, the amount of heat flowing through a glass pane can be calculated using the formula Q = kAΔTt/d, where k is the thermal conductivity, A is the area, ΔT is the temperature difference, t is the time, and d is the thickness. In this case, the heat flow through the glass in 1.50 h is 20512.5 J, assuming conduction only.

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Answer:

It is the point at which electrons separate from the nucleus of atoms. It is the point at which electrons separate from the nucleus of atoms. It is theoretically the point at which all particle motion stops. ... It occurs at 273 degrees Kelvin. ... It is the point at which protons separate from neutrons in the nucleus.

Explanation:

Answer:

Gravitation for exert on block along slope = Mgsin30

Since net force is 0 (constant speed)

Frictional force = Mgsin30

C(friction) = Frictional Force/Normal Force

Normal Force = Mgcos30

C(friction) = Frictional Force/Normal Force

=Mgsin30/Mgcos30

= tan 30

=0.577

Explanation:

Answer:

Explanation:

Answer:

Speed greater than 4 m/s

Explanation:

Given that Ms. Kasper is in a panic. Her cat, Penny, is stuck in a tree and about to jump out. In order to save her cat, Ms. Kasper needs to run to the tree, 12 meters away. If it takes her cat, 3 seconds to fall, how fast would Ms. Kasper have to run to save her cat?

The distance = 12 m

Time = 3s

Speed = distance/time

Speed = 12/3

Speed = 4 m/s

Ms Kasper must run at speed more than 4m/s for her to save the cat.

Given that the number of hailstones is n = 562

The mass of hailstone is m = 2 g = 0.002 kg

The speed of hailstone is v = 5.8 m/s

The time taken will be t = 92 s

The angle is

We have to calculate the force.

The force can be calculated by the formula

Substituting the values, the force will be

Responder:

3,37 m / s, + ve x - dirección

Explicación:

Utilizando la ley de conservación de la cantidad de movimiento expresada por la fórmula;

m1u1 + m2u2 = (m1 + m2) v

m1 y m2 son las masas de los objetos

u1 y u2 son sus velocidades iniciales

v es su velocidad común

Dado

m1 = 0,519 kg

u1 = 4,80 m / s

m2 = 0,220 kg

u2 = 0 m / s (cuerpo en reposo)

Necesario

Velocidad común v

Sustituir en la fórmula los valores dados;

0,519 (4,8) + 0,22 (0) = (0,519 + 0,220) v

2,4912 + 0 = 0,739 v

2,4912 = 0,739v

Dividir ambos lados por 0,739

2,4912 / 0,739 = 0,739 / 0,739

v = 3,37 m / s

Por lo tanto, la rapidez de ambas bolas después de la colisión es de 3.37 m.s hacia la dirección x positiva, ya que m1> m2 y la velocidad común es positiva.

If a metal ball is suspended by a rod , the forces acting on the system are balanced so there is no motion observed in the system and this is because of the upward tension in the rod .

Option 1 says : the tension in the rod

The gravitational pull that is acting downwards direction and the tension in rod that is acting in a anti parallel direction to the gravitational pull . being on the same line of action and in opposite directions , these forces cancels each other out .

Option 2 says : the friction of rod

Friction acts in cases of contact forces like a drag or pull not in cases of non-contact forces like gravity , thus friction can't balance it .

Option 3 says : the electromagnetic force

There are no charges or magnets present in the system so the electromagnetic force is absent in this case Thus they cant balance the gravitational force.

Option 4 says : the strong force around the rod

The strong force around is not on the line of action of the gravitational pull so it cant balance it.

So out of all the forces only the tension present in the rod is able to balance the gravitational force

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Answer:

Percent Error  =  67.86%

Explanation:

The percent error can be calculated using the following equation:

                              | measured value - true value |
Percent Error  =  -------------------------------------------------  x 100%
                                              true value

In this equation,

---> The "measured value" is the value found after performing an experiment.

---> The "true value" is the value you expect to find after performing an experiment.

In this case,

---> measured value = 4.5 g/cm³

---> true value = 14.0 g/cm³

                              | 4.5 g/cm³ - 14.0 g/cm³ |
Percent Error  =  ----------------------------------------  x  100%     <----- Insert values
                                         14.0 g/cm³

                               | -9.5 g/cm³ |
Percent Error  =  ------------------------  x  100%                 <----- Subtract
                                 14.0 g/cm³

                                  9.5 g/cm³
Percent Error  =  ------------------------  x  100%                 <----- Take absolute value
                                 14.0 g/cm³

     
Percent Error  =  0.6786  x  100%                                 <----- Divide

Percent Error  =  67.86%                                              <----- Multiply
                                 

(a) The average velocity of the car during the 95 km trip is 33.16 km/h.

(b) The average speed of the car during the 95 km trip is 9.21 m/s.

(a) The average velocity of the car during the 95 km trip is 33.16 km/h.

To calculate the average velocity, we need to consider both the distance traveled and the time taken. The car travels a total distance of 95 km and takes a total time of 2 hours and 10 minutes (40 km at 20 km/h = 2 hours and 55 km at 75 km/h = 50 minutes). Dividing the total distance by the total time gives us an average velocity of 33.16 km/h.

(b) The average speed of the car during the 95 km trip is 9.21 m/s.

To convert km/h to m/s, we divide the speed in km/h by 3.6. Thus, the average speed of the car, calculated by dividing 33.16 km/h by 3.6, is 9.21 m/s.

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The velocity of Sam just before hitting the ground is 294 m/s.

The above situation represents a case of motion in one dimension.

This type of motion is governed by the following three equations of motion,

v = u + at

v² - u² = 2as

S = ut + 1/2 at²

As in the given case, the acceleration and time have been given and the final velocity is to be calculated, therefore the 1st equation can be used,

v = u+ at

As Sam jumped from the plane, his initial velocity is zero.

So,

v = 0 + 9.8(30)

v = 294 m/s.

Thus, Sam's velocity just before hitting the ground is 294 m/s.

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At speed of about, 6.38 m/s, a bicycle and its rider, with a combined mass of 110 kg , will have the same momentum as a 1300 kg car traveling at 5.4 m/s.

:: Combined mass of rider and bicycle = 110 kg

:: Mass of car = 1300 kg

:: Speed of car = 5.4 m/s

:: Required speed of bicycle = V(assume)

By law of conservation of momentum,

m1 x v1 = m2 x v2,

where, m1 &m2 are masses of bodies, and v1 & v2 are their respective velocities.

Therefore, on putting values, we get,

(1300kg x 5.4m/s) = (110kg x V m/s)

V = (7020 / 110) m/s

V ≈ 6.38 m/s

Therefore, the required speed of bicycle is 6.38 m/s.

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The effect of increasing the absolute temperature by a factor of 3.0 (at constant pressure) on 1 mol of an ideal gas can be explained using the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the absolute temperature.

When the absolute temperature is increased by a factor of 3.0, the value of T in the equation also increases by the same factor. Since the pressure (P), volume (V), and number of moles (n) remain constant in this case, we can rearrange the ideal gas law equation to solve for temperature:

T = PV / (nR)

Since P, V, and n are constant, we can simplify the equation to:

T1 / T2 = (P1V1) / (P2V2)

If we let T1 be the initial temperature and T2 be the final temperature (increased by a factor of 3.0), and assume that P1, V1, and P2, V2 are the same, we can calculate the ratio of the final temperature to the initial temperature:

T2 / T1 = (P1V1) / (P2V2)

Since (P1V1) / (P2V2) is equal to 1 (since P1V1 = P2V2 for constant pressure), we find:

T2 / T1 = 1

Therefore, increasing the absolute temperature of 1 mol of an ideal gas by a factor of 3.0 (at constant pressure) results in the final temperature being equal to the initial temperature. The effect is that the temperature is tripled.

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Answer:

also tripled, factor of 3

Explanation:

equation of momentum is p = m * v , where p=momentum, m=mass, and v=velocity

if m is unchanged

p1 = m1 *v1

p2 = m2 *v2

m1 = m2 and v2 = 3*v1

p2 = m1 * 3v1 = 3*p1, tripled momentum

Answer:

Science is

Explanation:

he intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.

Answer:

A. Generator

Explanation:

Hope this will help

Answer:

A. Generator

Explanation:

That is the correct answer