19. Acceleration is defined as the CHANGE in a. time it takes to move from one speed to another speed.
b. velocity divided by the time interval.
c. velocity of an object.
d. time it takes to move from one place to another place.
e. distance divided by the time interval.

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