Why does the moon form two tidal bulges on the earth

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

How are series and parallel circuits simililar? both have multiple paths for electrons to travel. both require resistors in their circuits. both require a switch to complete the circuit. both have at least one path for electrons to travel.

Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack