Aperson gets into an elevator at the lobby level of a hotel together with his 30-kg suitcase, and gets out at the 10th floor 35m above. determine the amount of energy consumed by the motor of the elevator that is now stored in the suitcase

Explain how plate tectonics have changed earth’s surface over time. include the role of plate tectonics in the creation of landforms.

Is it possible to use the energy from two atoms colliding to create a clean burning lasting fuel source with a large amount of force? is it also possible to harness that energy from the two atoms colliding to create a clean energy source that will last for years from just two atoms colliding. is there a possibility to control and store that energy for years but slowly let the energy out enough to power cities cheaper and faster.

What is the type of the reaction below? bacl2 + h2so4 → 2 hci + baso4 double replacement synthesis single replacement decomposition