In a copper wire, the flow of current is made up of which of the following?
A ions B electrons C protons D neutrons

Determine the maximum r-value of the polar equation r =3+3 cos 0

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.