Why are melting points of pure solids reported without including the pressure.

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

70 give a real life example showing how sensory neurons work with the motor neurons

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?