Q1) An action exerted on an object which may change the object's state of rest or motion defines
a. acceleration.
b. force.
c. mass.
d. Velocity.

In an experiment, how can i change human errors? be specific.

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.

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.