In a car lift used in a service station, compressed air exerts a force on a small piston that has a eircular cross section and a diameter of 8.00 em. This pressure is transmitted by a liquid to a piston that has a diameter of 16.0 em. What force must the compressed air exert to lift a car weighing 1960 N? What is the air pressare produces this force? 16 Marks)

This is the substance(s) formed in a chemical reaction.

Ashot putter releases the shot some distance above the level ground with a velocity of 12.0 m/s, 51.0 ∘above the horizontal. the shot hits the ground 2.08 s later. you can ignore air resistance. how far did she throw the shot?

On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?