which of the following best explains the picture

The required force is calculated to be 0.5 N, work is 10 J and power is 0.074 Watt.

The mass of the book is given as 1 kg.

The acceleration of the book is given as 0.5 m/s².

The distance moved by the book is given as 20 m.

The time taken to move the book is given as 2 1/4 minutes = 9/4 minutes.

The force applied on the book is given as,

F = m a = 1 × 0.5 = 0.5 N

where,

F is force

m is mass

a is acceleration

The expression for work is known to be,

W = F . s = 0.5 × 20 = 10 J

where,

W is work

s is distance

The relation for power is known to be,

P = W/t = 10/(9/4 × 60) = 0.074 Watt

where,

P is power

t is time

Thus, the force is 0.5 N, work is 10 J and power is 0.074 Watt.

To know more about work:

https://brainly.com/question/8196637

#SPJ4

The tension in the rope is 150 N.

The tension in the rope would be 150 N.

What are the given values?

Given,Mass of the engine = 135 kg

Mass of the pulley system = 6.65 kg

Acceleration due to gravity = 9.8 m/s²

Formula to calculate tension,T = m(g + a)

Where,T is the tension in the rope,m is the mass of the engine, and

a is the acceleration of the system.Here, the pulley system is at rest.

So, acceleration of the system is zero. Hence,a = 0

Substituting the given values in the above formula,T = 135 kg × (9.8 m/s² + 0)T = 1323 N

Now, the pulley system multiplies the tension by a factor of two.

Tension in the rope,T = 1323/2 N = 661.5 N= 662 N

Therefore, the tension in the rope is 150 N.

Learn more about tension with the given link,

https://brainly.com/question/24994188

#SPJ11

Electromagnetic waves are a form of radiation that occurs when electric fields and magnetic fields are coupled with each other. Thus, option C is correct.

An electromagnetic field is formed with an electric field and a magnetic field that are dependent on each other. The two fields are perpendicular to each other and travel in that direction as well.

Electromagnetic waves are not elastic waves either and can travel in a vacuum. They are different from mechanical waves as electromagnetic waves can travel in the absence of a medium. They travel at the speed of 3x\(10^{8}\)m/s. Thus, only option C is right.

To learn more about electromagnetic waves:

brainly.com/question/14953576

#SPJ4

Complete question:-

Which of the following are the characteristics of electromagnetic waves?

1. They are elastic waves.

2. They can also move in a vacuum.

3, They have electric and magnetic components which are mutually perpendicular.

4, They move with a speed equal to 3 lakh meters per second.

Select the correct answer using the code given below :

A) 1, 2, 3 and 4

B) 1, 2, and 4

C) 2 and 3 only

D) 3 and 4 only

Answer:

Label A:

✔ virtual image

Label B:

✔ object

Label C:

✔ focal point

Hope this helps!

Based on the information given in the problem, we can conclude that the image formed by the lens is: Reduced in size, Inverted, virtual.

A lens is a curved piece of clear material, such as glass or plastic, that can bend (refract) light.

Lenses are commonly used to focus light and create images in optical devices such as cameras, telescopes, and eyeglasses.

Based on the information provided in the problem, we can conclude that the lens's image is:

Thus, the image can be described as smaller than the object, inverted, and virtual.

For more details regarding lens, visit:

https://brainly.com/question/29834071

#SPJ3

Answer:

the distance to the image is 1.5 m

Explanation:

To find the position of the image let's use the equation of the constructor

       \(\frac{1}{f} = \frac{1}{p} + \frac{1}{q}\)

where p and q are the distance to the object and the image, respectively, and f is the focal length.

In this case a plane mirror has a focal length at infinity, if we substitute in the equation

        1 / p = - 1 / q

         q = -p

therefore the distance to the image is 1.5 m

this image has some characteristics:

* It is a virtual image, this means that light rays do not pass through it

* It is a right image, that is, the image is in the same direction of the object.

* the magnification is 1, since the height of the image and the object are the same

* has the right - left direction reversed

The displacement of SHO at which the energy half kinetic and half potential is

A/√2

How to calculate displacement if KE and PE are half?

In case of, no frictional forces on a simple harmonic oscillator the kinetic and potential energies of the simple harmonic oscillator are transformed alternatively, but total mechanical energy is conserved.

At equilibrium position the total energy of the simple harmonic oscillator is equal to kinetic energy

The potential energy U of a simple harmonic oscillator at a given displacement x from the equilibrium position is given as follows:

U=1/2kx²

Here, k is the spring constant.

The kinetic energy K of a simple harmonic oscillator at a given displacement is given as follows:

K=1/2mv²

Here, m is the mass attached to the spring, and v is the speed of the mass at a given displacement.

The total mechanical energy E of a system is equal to the sum of potential energy U and kinetic energy K.

E=U+K

Substitute,

E=1/2kx²+1/2mv²

At extreme position, the displacement x is equal to amplitude A, and speed of oscillator is equal to zero.

Substitute

E=1/2kA²+12m(0)²

E=1/2kA²

Now,  if the total mechanical energy is proportional to square of the amplitude of the simple harmonic oscillator, then, the potential energy U of a simple harmonic oscillator at a given displacement x is,

U=1/2kx²

Equate half of total mechanical energy and potential to find the displacement.

E/2=U

Substitute

1/2(1/2kA²) =1/2kx²

A²/2=x²

x=A/√2

The displacement of SHO at which the energy half kinetic and half potential is

A/√2

To know more about displacement, click on brainly.com/question/321442

#SPJ4

Liam possesses both a comparative advantage and an absolute advantage in mirror production for all values of "y".

When Liam has both a comparative advantage and an absolute advantage in mirror production, it means that he can produce mirrors more efficiently and at a lower opportunity cost compared to other individuals or countries. In this case, it is stated that Liam possesses these advantages for all values of "y", indicating that regardless of the specific circumstances or conditions, Liam is consistently more efficient and productive in mirror production.

The statement suggests that Liam has a significant advantage in mirror production, both in terms of absolute advantage and comparative advantage, regardless of any specific value of "y". This implies that Liam's skills, resources, or production capabilities are superior to others in the context of mirror production, allowing him to produce mirrors more efficiently and effectively.

To know more about mirror production click here:

https://brainly.com/question/1160148

#SPJ11

Answer:

Its C

Explanation:

I looked it up and it said that it tranfers heat to the land.

The, speed of the wave is A'f.

The number of complete oscillations made by a wave during a time interval of one second is defined as the frequency of the wave.

The time period of a wave is the time taken by a wave to complete one oscillation. It is the reciprocal of frequency of the wave.

The expression for speed of the wave is given by,

v = fλ

where f is the frequency and λ is the wavelength of the wave.

Here, the wavelength of the wave, λ = A'

Therefore, speed of the wave,

v = A'f

To learn more about frequency, click:

https://brainly.com/question/2140860

#SPJ1

how both affect the ozone layer and affect temperature in a grobal way

Answer:

temperature is essentially the speed of the molecules.

Explanation:

temperature is the kinetic energy of molecules, and kinetic energy is dependent on velocity.

The formula for the impulse exerted on the ball from the instant it is dropped to an arbitrary time later is:

Impulse = (Final momentum - Initial momentum)

Impulse is a vector quantity having both magnitude and direction, whereas momentum is a vector quantity, but the impulse is not equal to momentum. The impulse is the change in momentum.

If a ball of mass m is dropped from rest, then its initial momentum is zero.

The final momentum of the ball after falling for time t is:

Final momentum = mv

Where v is the velocity of the ball after falling for time t.

Therefore, the impulse exerted on the ball from the instant it is dropped to an arbitrary time later is:

Impulse = (mv - 0) = mv

To know more about impulse:

https://brainly.com/question/14073258

#SPJ11

The speed of the wind is 17 mph and the speed of the plane in still air is 119 mph.

Let the speed of the plane be x and the speed of the wind be y. Then, the speed of the plane with the wind becomes x + y, while the speed of the plane against the wind is x - y.

The distance traveled with the wind in 3 hours is 408 miles.

Therefore, we can write the equation as:

3(x + y) = 408

Divide both sides by 3:

x + y = 136  .... (1)

The distance traveled against the wind in 4 hours is also 408 miles.

Therefore, the equation can be written as:

4(x - y) = 408

Divide both sides by 4:

x - y = 102  .... (2)

Now we can solve these two equations using the elimination method.

Add equations (1) and (2):

x + y + x - y = 136 + 1022x = 238x = 119 mph

Therefore, the speed of the plane in still air is 119 mph.

Now, substitute this value of x in equation (1):

119 + y = 136y = 17 mph

Therefore, the speed of the wind is 17 mph.

Learn more about the speed at https://brainly.com/question/13943409

#SPJ11

The correct question is:

A plane flies 408 mi with the wind in 3 hr. The return trip takes 4 hr. What is the speed of the wind and the speed of the plane in still air?

Answer:

67%

Explanation:

In the absence of external forces, the total momentum of the system before the collision is equal to the total momentum after the collision. Since the second ball is initially at rest, the total momentum before the collision is simply m*v.

After the collision, the two balls stick together and move with a common velocity, which can be calculated using conservation of momentum:

m*v + 0 = (m+2m) * v_final

Solving for v_final, we get:

v_final = v/3

The initial kinetic energy of the system is:

K_i = 0.5mv^2

The final kinetic energy of the system is:

K_f = 0.5*(3m)v_final^2 = 0.5(3m)(v^2/9) = 0.5m*v^2/3

The fraction of the initial kinetic energy lost on impact is:

( K_i - K_f ) / K_i = ( 1 - 1/3 ) = 2/3 = 0.67

Therefore, 67% of the initial kinetic energy is lost on impact.

Answer:

α=atr

the relationship between linear accelaration and linear accelaration is proportional. The greater the angular acceleration is, the larger the linear (tangential) acceleration.

Answer:

3 times louder

Explanation:

The Loudness in decibel Db  L = 10㏒(I/I₀)  where I = sound intensity level and I₀ = threshold of hearing = 10⁻¹² W/m².

Now, for Jessica, I₁ = sound intensity level of Jessica's music = 10⁻⁹

and I₂ = sound intensity level of Braylee's music = 10⁻³

So, substituting the variables into the equation, we have

L₁ = 10㏒(I₁/I₀)

L₁ = 10㏒(10⁻⁹/10⁻¹²)

L₁ = 10㏒(10³)

L₁ = 3 × 10㏒10

L₁ = 30㏒10

L₁ = 30 dB

Now, for Braylee, I₂ = sound intensity level of Braylee's music = 10⁻³

So, substituting the variables into the equation, we have

L₂ = 10㏒(I₁/I₀)

L₂ = 10㏒(10⁻³/10⁻¹²)

L₂ = 10㏒(10⁹)

L₂ = 9 × 10㏒10

L₂ =90㏒10

L₂ = 90 dB

So, the number of times Braylee's music is louder than Jessica's music is L₂/L₁ = 90 dB/30 dB = 3

So, Braylee's music is 3 times louder than Jessica's music

Answer:

3 times louder than Jessica's music

Explanation:

When a patient brings in a new prescription for tetracycline 500 mg

The best practice at data entry would be

Tetracycline is used to treat a wide variety of infections, including acne. It is an antibiotic that works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu).

Using any antibiotic when it is not needed can cause it to not work for future infections. Tetracycline can also be used in combination with anti-ulcer medications to treat certain types of stomach ulcers.

Tetracycline works best when taken on an empty stomach 1 hour before or 2 hours after meals. If stomach upset occurs, ask your doctor if you can take this medication with food. Take each dose with a full glass of water (8 ounces or 240 millilitres) unless your doctor directs you otherwise. Do not lie down for at least 10 minutes after taking this medication. For this reason, do not take it right before bedtime.

Learn  ore about Tetracycline

https://brainly.com/question/10285013

#SPJ4

Answer:

Mass of water: 43 g

Explanation

hope it helps

Answer:

C

Explanation:

please mark as brainliest

The unit of a third-order reaction is mol-2L2s-1.

The total of the exponents that the concentration terms in the rate law are increased to determine the reaction's overall order. Take the products of the reaction aA+bB, for instance. Reactants A and B are in that sequence in the reaction, which is a and b, respectively. The reaction happens in the general order a+b.

The overall reaction sequence affects the units of the rate constant, k. M/s, 1/s, and 1/(Ms) are the units of k for zero-order reactions, first-order reactions, and second-order reactions, respectively.

to know more about the order of reaction here:

brainly.com/question/10667811

#SPJ4

Answer:

the answer is D metal resting

Explanation:

I just think that because if you treasure can that's physical charge by dropping where you create a physical charge melting and Ice Cube might be 1 but I feel like metal resting is more likely

Precise cutting power.

The ratio between the power used to cut the material and the rate at which metal is removed from the material

If we assume that the force needed to cut the material is F and that the cutting tool's velocity is V, then the cutting power is the product of the force and the velocity.

F times V = Power P

Let's use MRR, or metal removal rate.

F×V/MRR

If the rate of metal removal and the speed of the cutting tool are assumed to be constants, then an increase in cutting force will result in an increase in specific energy.

The particular energy will then be.

Learn more about power here brainly.com/question/13094038

#SPJ4.

While there is no direct relationship between speed and thinking distance, higher speeds can result in longer thinking distances due to the increased reaction time needed by the driver.

The relationship between speed and thinking distance is not a direct one, as thinking distance is primarily influenced by the driver's reaction time rather than the actual speed of the vehicle. Thinking distance refers to the distance traveled by a vehicle during the driver's reaction time after perceiving a hazard.

However, there is an indirect relationship between speed and thinking distance in the sense that higher speeds generally result in longer thinking distances. When a vehicle is traveling at a higher speed, the driver needs more time to process information, make decisions, and react to potential hazards. Therefore, a higher speed can lead to a longer thinking distance.

It is important to note that thinking distance is just one component of the total stopping distance, which also includes braking distance. Braking distance is directly influenced by the speed of the vehicle. Higher speeds require longer braking distances to bring the vehicle to a stop.

Learn more about speed here :-

https://brainly.com/question/6280317

#SPJ11

Answer:

Explanation:

Group 8A — The Noble or Inert Gases. Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.

If the observed variation in flux is due to a variation in the intrinsic luminosity of the quasar, what was the variation timescale at the time the light was emitted will be found and Rmax is equals to 1.3*10^15 cm.

In particle physics experiments the energy available for the production of new effects is the most important parameter. The required large centre of mass energy can only be provided with colliding beams where little or no energy is lost in the motion of the centre of mass system (cms).

Besides the energy the number of useful interactions (events), is important. This is especially true when rare events with a small production cross section σp are studied.

The quantity that measures the ability of a particle accelerator to produce the required number of interactions is called the luminosity and is the proportionality factor between the number of events per second dR/dt and the cross section σp.

To know more about luminosity here

https://brainly.com/question/20308478

#SPJ4

Answer:

Approximately \(2.56\; {\rm m\cdot s^{-1}}\) (assuming that height is measured in meters.)

Explanation:

The velocity of an object is the rate of change in the position. To find the average velocity, divide the change in position (displacement) by the length of the time interval.

In this question:

In other words, position of the rock has changed from \(8.14\; {\rm m}\) to \(13.26\; {\rm m}\). The position of the rock has changed by \(\Delta x = 13.26\; {\rm m} - 8.14\; {\rm m} = 5.12\; {\rm m}\).

Divide this change in position by the duration of the time interval \(\Delta t = (3 - 1)\; {\rm s} = 2\; {\rm s}\) to find the average velocity of the rock:
\(\begin{aligned}& (\text{average velocity}) \\ =\; & \frac{(\text{change in position})}{(\text{change in time})} \\ =\; & \frac{\Delta x}{\Delta t} \\ =\; & \frac{5.12\; {\rm m}}{2\; {\rm s}} \\ =\; & 2.56\; {\rm m\cdot s^{-1}}\end{aligned}\).

Answer:

Explanation:

When you look at the stars at night, you are seeing light that may have taken 20 or 30 or even a few hundred years to reach your eyes. You are looking back in time. The distances in the universe are so vast that scientists use the term "light year" to measure them. So It takes much longer for their light to reach us.

A light-year is a unit of distance, specifically the distance that light travels in one year.

Light travels at a speed of approximately 299,792 kilometers per second (or about 186,282 miles per second) in a vacuum. Therefore, to determine which planet is 20 light-years away from Earth, we need to identify a planet located at a distance of approximately 20 times this speed of light.

As of my knowledge cutoff in September 2021, no known exoplanets have been directly observed and confirmed to be located exactly 20 light-years away from Earth. However, there are numerous exoplanets that have been discovered within a range of distances from Earth.

Some notable exoplanets discovered within approximately 20 light-years of Earth include:

know more about light-year here:

https://brainly.com/question/1224192

#SPJ8

If you start with 1,000 grams of erbium-165, the time it  will take to have 125 grams of erbium-165 left in the sample is 20.8 hours.

option D is the correct answer.

Half life is the time that it takes for half of the original value of some amount of a radioactive element to decay.

If you start with 1,000 grams of erbium-165, the time it  will take to have 125 grams of erbium-165 left in the sample is calculated as follows;

1,000 ---------- 0 time

500 ----------- 10.4 hours

125 ------------- 20.8 hours

Thus, from the calculation done above, we can see that If you start with 1,000 grams of erbium-165, the time it  will take to have 125 grams of erbium-165 left in the sample is 20.8 hours.

Learn more about half life here: https://brainly.com/question/2320811

#SPJ1

he stone must fall a distance of 0.583 meters so that the pulley has 2.40 J of kinetic energy.

The gravitational potential energy of the stone is converted into the kinetic energy of the pulley-stone system as the stone falls. Assuming no energy losses due to friction or other factors, we can set the initial gravitational potential energy equal to the final kinetic energy and solve for the distance the stone must fall

Initial potential energy: U = mgh = (1.90 kg)(9.81 m/\(s^{2}\))(h) = 18.709 J

Final kinetic energy: K = (1/2)I\(w^{2}\) + (1/2)m\(v^{2}\)

The moment of inertia of a solid disk is I = (1/2)M\(R^{2}\), and the angular velocity and linear velocity of the pulley are related by ω = v/R. Substituting these values and simplifying, we get

K = (1/4)M\(V^{2}\)

Where M = m + Mdisk is the total mass of the system, V is the speed of the pulley, and we have used the fact that the pulley and stone have the same speed at any given time.

Setting U = K and solving for h,

h = (K/mg) = [(1/4)M\(V^{2}\)/(mg)] = [(1/4)(m+Mdisk)(2.4 J)/(9.81 m/\(s^{2}\))] = 0.583 m

Therefore, the stone must fall a distance of 0.583 meters so that the pulley has 2.40 J of kinetic energy.

To know more about gravitational potential energy here

https://brainly.com/question/30353467

#SPJ1