Why do the plate tectonics move?I need help cause this will be on a test later thanks and also I just posted this for no reason who wants to talk

An input force of 7 n is applied to a machine with a mechanical advantage of 1.75. what is the maximum the machine could lift? 12.25 n7n7.25 n26.2 n

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?