A mass of 10kg is a point a on a table is moved to a point B. if the line joining A and is horizantal what is the done on the object by the work done on the object by the gravitational force!?

Why does lightning travel from clouds to the ground? a. the negatively charged ground attracts the positive charge from the clouds b. charges are exchanged between negatively charged clouds and positively charged ground c. gravity pulls the negatively charged energy from clouds downward d. gravity pulls the positively charged energy from clouds downward