The weight of a luggage is 69.3 N on the moon. Find its weight on the Earth.​

Anybody wanna ? (picture included? )

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)

Which describes increasing the efficiency of energy resource