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2 years ago

It takes 500W of power to move an object 96 m in 12 s. What force is being applied to the object?

Physics

1 answer:

Marianna [84]2 years ago

5 0

The force being applied to the object is calculated to be 62.5N.

<h3>POWER:</h3>

Power is the rate at which work is done. It is measured in watts (W). Power can be calculated by multiplying the force applied on a given object by its speed.

Power (P) = Force (F) × speed (V)

According to this question, it takes 500W of power to move an object 96 m in 12 s. The speed of the object in m/s is calculated as: 96m/12s = 8m/s.

The force applied on the object = 500/8

Force = 62.5N

Therefore, the force being applied to the object is calculated to be 62.5N.

Learn more about force at: brainly.com/question/1436187

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Which part of the electromagnetic spectrum has a lower frequency than visible light?

Mademuasel [1]

The Correct Answer is <u>D.Infrared/</u> <em>INFARED has a lower frequency than visible light/</em>

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3 years ago

Read 2 more answers

A current loop ABCDA consists of a metal rod. a resistor R, and a pair of conducting rails separated by a distance d. The rod ha

Lilit [14]

Answer:

a) $\vec{d} =B-A$

b) $I=\frac{B*v*d*\sin 90 \textdegree}{R}$

c) $v \approx 0.6m/s$

Explanation:

From the question we are told that

Magnetic field strength $B=3.6T$

Distance traveled $d=7m$

Mass $m=4.7 kg$

Resistance $r=8.2 ohm$

Gravitational acceleration $g=9.8m/s^2$

$\theta =90 \textdegree$ Because of perpendicularity

Generally the direction of the current will be given as

$\vec{d} =B-A$

Because it opposes increases of magnetic flux

Generally the equation for induced EMF $E$ is mathematically given as

$E=B*v*d*\sin \theta$

$E=B*v*d*\sin 90 \textdegree$

Generally the equation for induced current $I$ is mathematically given as

$I=E/R$

$I=\frac{B*v*d*\sin 90 \textdegree}{R}$

Generally the the equation for force F at terminal speed is mathematically given as

$F=mg$

$mg=B*I*d*\sin 90 \textdegree$

$mg=B*(\frac{B * v * d }{R}) *d$

$v=\frac{m*g*R}{B^2*D^2}$

$v=\frac{4.7*9.8*8.2}{3.6^2*7^2}$

$v=0.59475m/s$

$v \approx 0.6m/s$

7 0

3 years ago

A weightlifter curls a 25 kg bar, raising it each time a distance of 0.50 m. How many times must he repeat this exercise to burn

anyanavicka [17]

42 times must he repeat this exercise to burn off the energy in one slice of pizza.

What is energy?

Energy is the ability or capability to do tasks, such as the ability to move an item (of a certain mass) by exerting force. Energy can exist in many different forms, including electrical, mechanical, chemical, thermal, or nuclear, and it can change its form.

Energy burn by the weightlifter = potential energy

Potential energy = mgh

Potential energy = 25.(9.8)(0.50)

Potential energy = 122.5 Joule.

Assume 25% of efficiency so energy burn = 122.5*25/100

energy burn = 30.625 joule

Number of times = 1260/30.625

Number of times = 42 times.

42 times must he repeat this exercise to burn off the energy in one slice of pizza.

To learn more about energy refer to the link:

brainly.com/question/1932868

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