Consider the electric force between a pair of charged particles a certain distance apart. By Coulomb's Law, if the CHARGE on ONE of the particles is QUADRUPLED,
the new force is equal to the original force.
4x
16 x
1/4 x
01/16 x

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

In what direction does the medium move relative to the direction of the wave? explain.

Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object