Can someone please explain this?

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?

Which are causes of mechanical weathering? (check all that apply) a. acid rain b. plant growth c. animal actions d. carbon dioxide e. pressure release i chose b & e and got the question wrong.

Ahurricane sweeps across the ocean and damages the houses of people living along the coast. which of these does not play any role in this interaction? air water glaciers living things