As a person squeezes and applies pressure to the outside of a balloon air particles inside

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse

An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone