How does the gravitational force change as two objects move farther apart ?

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?

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?

Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory