Consider a person standing in an elevator that is accelerating upward. The upward normal force N exerted by the elevator floor on the person is

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

Phase changes are chemical changes. true or false

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.