A 78-kg test "dummy" crashes into a wall at 14 m/s and is brought to rest in 0.10 s What is the magnitude of the average force exerted by the wall on the “dummy”?

Identify the forces that contribute to the centripetal force on the object in each of the following examples: a. a bicyclist moving around a flat, circular track b. a bicycle moving around a flat, circular track c. a racecar turning a corner on a steeply banked curve

In one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.