Which of the following is equal to the slope of a distance versus time graph?
a. time
b. velocity
c. distance
d. acceleration

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?

What ia the energy of an object because of its potential and kinetic energies

When a metal and an bond they do not share electrons