A dog of mass 4 kg runs up a hill of height 8 m how much gravitational potential energy does the dog gain a.) 78 J
b.) 32 J
c.) 229 J
d.) 314 J

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.

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.

If jason ii needs 15 kw of power at 300 volts to operate, what amperage of current must flow through the cable?