If a 4 kg object has an initial momentum of 60 kg m/s Right and has an impulse of 20 N*s Left: a) What is the object's final momentum (after the impulse is applied)?

b) What is the object's final velocity?

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