A cannon fires a cannonball. Explain how the cannonball gains kinetic energy.
A. The sound of the explosion propels the cannonball.
B. The thermal energy of the explosion propels the cannonball.
C. The chemical energy of the explosives transforms into kinetic energy.
D. The electrical potential energy of the explosives transforms into kinetic energy.

C

Explanation:

I would try c but i'm not 100% positive

c

Explanation:

its C because energy cant be destroy nor created its just can be transfer in a way such as the chemical solution that release energy to propel the cannonball thus the kinetic energy (movement)

i think the answer is a, hope this is right, that would be my best guess.

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.