How is our planets giant, thermohaline system of warm and cold water like a massive convection current

Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.

Coal contains energy. a. light b. kinetic c. chemical d. mechanical

An atom that has gained or lost electrons is called an _