Aball rolls along a smooth horizontal floor at 10 m/s, then starts up a 20 degree ramp. how high does it go before rolling back?

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

In apex! a liquid heated beyond a certain temperature becomes

Adepositional also feature that forms where a stream enters a lake or an ocean is a