While some citizens may run for political office, the primary method of participation in the political system for most citizens is which of the following selections? Select one: A. voting B. petitioning their government C. standing for election D. sitting on a jury

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

Explain why electric current cannot exist if a current doesn't have a voltage source.

A55-kg pilot flies a jet trainer in a half vertical loop of 1200-m radius so that the speed of the trainer decreases at a constant rate. knowing that the plane has a speed of 550 km/h at point a, and the pilot experiences weightlessness at point c (i.e., the normal force from the seat bottom is zero), determine (a) the deceleration of the plane, (b) the force exerted on her by the seat of the trainer when the trainer is at point b.