How would you describe the amplitude of a wave using the words crest and trough?

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit