Which of the following statements is true of an isolated system? A.
Energy separates the matter in the system from outside matter.

B.
The matter within the system does not interact with matter outside the system.

C.
The matter within the system does not interact with other matter in the system.

D.
The system has energy but no matter.

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.