Apropeller is modeled as five identical uniform rods extending radially from its axis. the length and mass of each rod are 0.701 m and 2.81 kg , respectively. when the propellor rotates at 577 rpm (revolutions per minute), what is its rotational kinetic 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.

According to the image below, which season is about to begin in the southern hemisphere? a. summer b. autumn c. winter d. spring

An object with a mass of 1.5 kg changes its velocity from + 15 m/s to +22 m/s during a time interval of 3.5 seconds. what impulse was delivered to the objects?