A measure of the disorder of a system is called

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Current from a charged capacitor lights a bulb. as time goes on the brightness of the

Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?