Can someone give me an example of mass and help me explain how the mass of an object affect it's motion? HELP

What are the three ways that an object can accelerate

Asystematic approach to problem solving is called a (an)

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.