How much work is done moving an object 5.0 m by a 15 N force?
a. 75 J b. 15 J c. 5.0 J d. 3.0 J

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