Two spheres are moving towards each other. Which of the following is the best evidence that the spheres have transferred energy from one to the other?

A. The friction of the surface decreases

B. Gravity is always acting on the spheres

C. The motion of the sphere changes

Or

D. Both of the spheres have the same mass

Iflow from a warmer object to a cooler object until both objects are the same temperature what am i?

Which would not reduce the amount of green house gasses in the air

Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. in essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. suppose a current of 480.ma is passed through an electroplating cell with an aqueous solution of agno3 in the cathode compartment for 46.0 seconds. calculate the mass of pure silver deposited on a metal object made into the cathode of the cell. round your answer to 3 significant digits. also, be sure your answer contains a unit symbol. ×10μ