Communications satellites are placed in orbits so that they always remain above the same point of the earth's surface. a part completewhat must be the period of such a satellite? express your answer in hours to the nearest integer. tt = 24 h previous answers correctb what is its angular velocity?

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.