A supplier wants to make a profit by buying metal by weight at one altitude and selling it at the same price per pound weight at another altitude. The supplier should

Suppose that three astronomical objects, 1, 2, and 3 are observed to lie on a line, and the distance from object 1 to object 3 is d. object 1 has four times the mass of object 3, and seven times the mass of object 2. find the distance between objects 1 and 2 for which the net force on object 2 is zero.

The receptor cells that convert light energy into neural signals are called

Does the asteroid belt revolve around the sun?