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Novay_Z [31]
2 years ago
5

An object at rest has no ________ energy, but it may have ________ energy resulting from its location or structure. An object at

rest has no ________ energy, but it may have ________ energy resulting from its location or structure. chemical; potential kinetic; potential kinetic; heat potential; kinetic
Physics
1 answer:
anzhelika [568]2 years ago
5 0

Answer: An object at rest has no kinetic energy, but it may have potential energy resulting from its location or structure.

Explanation: To find the answer, we need to know more about the kinetic and potential energies.

<h3>What is kinetic energy of a body?</h3>
  • Kinetic energy is a form of mechanical energy possessed by a body by virtue of its motion.
  • Kinetic energy of a body of mass m moving with a velocity v is given by,

                           KE=\frac{1}{2}mv^2

<h3>What is potential energy?</h3>
  • Potential energy is a form of mechanical energy possessed by a body by virtue of its position in the field or configuration.
  • PE is always associated with a conservative force.
  • There cannot be potential energy due to frictional or viscous forces.

Thus, we can conclude that, an object at rest has no kinetic energy, but it may have potential energy resulting from its location or structure.

Learn more about the kinetic and potential energies here:

brainly.com/question/28044620

#SPJ4

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Answer:

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4 0
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In a chemical reaction blank are the substances left over
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Answer: In a chemical reaction blank are the substances left over

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1. A 0.40 kg ball is launched at a speed of 16 m/s from a 22 m cliff.
Masja [62]

Answer:

51.2 J, 86.2 J, 137.4 J

Explanation:

The kinetic energy of the ball is given by:

K=\frac{1}{2}mv^2

where

m = 0.40 kg is its mass

v = 16 m/s is its speed

Substituting,

K=\frac{1}{2}(0.40)(16)^2=51.2  J

The potential energy of the ball is given by

U=mgh

where

m = 0.40 kg

g=9.8 m/s^2 is the acceleration of gravity

h = 22 m is the heigth of the cliff

Substituting,

U=(0.40)(9.8)(22)=86.2 J

Finally, the total mechanical energy is the sum of the kinetic energy and the potential energy:

E=K+U=51.2 + 86.2=137.4 J

4 0
3 years ago
If a cannon is fired use a=F/m to explain what happens to the cannon and the cannonball.
Serga [27]
Im not really sure about this im stuck to

4 0
3 years ago
Read 2 more answers
A wheel with moment of inertia 25 kg. m2 and angular velocity 10 rad/s begins to speed up, with angular acceleration 15 rad/sec2
Pani-rosa [81]

Answer:

(A) Angular speed 40 rad/sec

Rotation = 50 rad

(b) 37812.5 J

Explanation:

We have given moment of inertia of the wheel I=25kgm^2

Initial angular velocity of the wheel \omega _0=10rad/sec

Angular acceleration \alpha =15rad/sec^2

(a) We know that \omega =\omega _0+\alpha t

We have given t = 2 sec

So \omega =10+15\times  2=40rad/sec

Now \Theta =\omega _0t+\frac{1}{2}\alpha t^2=10\times 2+\frac{1}{2}\times 15\times 2^2=50rad

(b) After 3 sec \omega =10+15\times 3=55rad/sec

We know that kinetic energy is given by Ke=\frac{1}{2}I\omega ^2=\frac{1}{2}\times 25\times 55^2=37812.5J

7 0
3 years ago
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