Latent heat of vaporization refers to which changes of state? a. liquid to gas or gas to liquid
b. solid to gas or gas to solid
c. solid to liquid or gas to liquid
d. gas to liquid or liquid to solid

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects