A70.0-kg skier is sliding at 4 m/s when they slide down a 2m high hill. at the bottom of the hill they run into a large 2800 n/m spring.

how far do they compress the spring before coming momentarily to rest? ignore friction.

A1500 w electric heater is plugged into the outlet of a 120 v circuit that has a 20 a circuit breaker. you plug an electric hair dryer into the same outlet. the hair dryer has power settings of 600 w, 900 w , 1200 w, and 1500 w. you start with the hair dryer on the 600 w setting and increase the power setting until the circuit breaker trips. under what setting does the circuit breaker trip.