1. what is the speed of a truck that travels 10
km in 10 minutes?

Does heating a metal wire increase or decrease its electrical resistance? why?

The ability to make things happen is also called a. heat b. force c. matter d. energy

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.