An empty parallel plate capacitor is connected between the terminals of a 4.4-v battery and charged up. the capacitor is then disconnected from the battery, and the spacing between the capacitor plates is quadrupled. as a result of this change, what is the new voltage between the plates of the capacitor?
i have: e = v/de =9 vthen the distance is doubled 9(2) = 18 v

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

The metric unit of electrical power is the watt volt ampere ohm

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?