PLS HELP! 1. A runner moving at a speed of 8.8 m/s rounds a bend with a radius of 25m. What is the centripetal acceleration of
the runner, and what agent or unique force exerts the centripetal force on the runner?

Which of the following compounds would be primarily ionic? methane, ch4, ammonia nh3, calcium chloride, cacl2, or carbon dioxide, co2

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.

First to answer will be the brainliest i need the answer asap