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3 years ago

Which of the following has potential but not kinetic energy?

1 answer:

7 0

The answer would be option D "a ball sitting on a shelf." Potential energy is the amount of energy a object has while it's at rest.. (or not moving) Kinetic energy is how much energy a object is while it's moving. So in this case it's option D because a ball sitting on a shelf isn't moving therefore it has potential energy. It's not option A because thats a example of kinetic energy since how the roller coaster is moving. It's not option B because it's kinetic energy because the bike is moving. It's also not option C because it's kinetic energy because the bird is moving.

Hope this helps!

You might be interested in

An electrostatic paint sprayer has a 0.17 m-diameter metal sphere at a potential of 25.0 kV that repels charged paint droplets o

Troyanec [42]

Answer:

$q=0.236uC$

Explanation:

From the question we are told that:

Diameter $d=0.17m$

Radius $r=0.17/2=>0.085$

Potential $E=25.0kV$

Generally the equation for Potential on spere is mathematically given by

$E=\frac{1}{4 \pi e_0}*\frac{q}{r}$

Therefore

$q=\frac{25*10^3*0.085}{\frac{1}{4 \pi e_0}}$

Where

$\frac{1}{4 \pi e_0}=9*10^9$

Therefore

$q=\frac{25*10^3*0.085}{(9*10^9}}$

$q=0.236uC$

4 0

3 years ago

Light travels through a vacuum at a speed of 3 x 10 m/s. What is the speed of

Andrew [12]

Answer:

v = c / n (n = 1 for air)

v = c / 1.33 = 3 * 10E8 m/s / 1.33 = 2.25 * 10E8 m/s

3 0

3 years ago

In the eastern US, hurricanesusually form over the warm waters of the Caribbean Sea and travel north. When they are over the col

garik1379 [7]

Answer:

Less powerful

Explanation:

Hurricanes rely on warm water. It sucks heat energy from the water to use for fuel. Warmer water means more moisture, which also mean a bigger and/or stronger hurricane. The North Atlantic is definitely much colder than the Caribbean so the hurricane will not have much fuel.

Have a great day!

8 0

3 years ago

NO LINKS OR I WILL REPORT YOU b/t/w i\d\k if this is physics or not

MrMuchimi

Above information helps you bro.

4 0

3 years ago

Jenny is very nervous about giving her speech, and when she stands up in

timurjin [86]

Answer:

Stage fright

Explanation:

Stage fear is one that a person experiences when he feels exposed to what others are going to say. This feeling is characterized by the fear of public speaking. Some common causes are large crowds or stress associated with an important presentation where people can stutter and do a poor job.

4 0

3 years ago