A pole-vaulter first converts kinetic energy into

a.

thermal energy.

b.

chemical energy.

c.

mechanical energy.

d.

elastic potential energy.

A dog uses 300 N of force to run 50 m with a speed of 5.9 m/s. How much power does he expand

The applied force required to push something across a surface as friction increases is what?

Is it true that an Atoms nucleus holding large amount of kinetic energy

You are working out on a rowing machine. Each time you pull the rowing bar (which simulates the "oars") toward you, it moves a distance of 1.3 m in a time of 1.5 s.

Is sugar cane a renewable or non-renewable source of energy? And why?

What does the ozone layer absorb? a. Microwaves c. UV radiation b. X-rays d. Infra-red radiation

An object is undergoing shm with period 0.900 s and amplitude 0.320 m. at t = 0 the object is at x = 0.320 m and is instantaneously at rest. calculate the time it takes the object to go (a) from x = 0.320 m to x = 0.160 m and (b) from x = 0.

Your friend states in a report that the average time required to circle a 1.0-mi track was 49.325 s. This was measured by timing 10 laps using a stopwatch with a precision of 0.01 s. Do you believe his results are reliable? Explain.

The forklift exerts a 300.0 N force on the box and moves it 15.0 m into the air. How much work does the forklift do? A. 500 J B. 1.50 * 10^3 J C. 4.50 * 10^3 J D. 0.00 J

Why the room gets hot even we open the door of refrigerator?