The door of a jet liner has dimension of 2.3m x 1.2m. if the inside pressure of cabin is 100kpaa , what force is exerted on the door when the plane flies at an altitude where the outside pressure is 15 kpaa.

A bicycle tire pump has a piston with area 0.44 inches squared. If a person exerts a force of 30 lb on the piston while inflating the tire, what pressure does this produce on the air in the pump? Give your answer in psi.

Very small pressure differences p A -p B can be measuredaccurately by the two-fluid differential manometerin Fig. . Density ρ 2 is only slightly larger than thatof the upper fluid ρ 1 . Derive an expression for the proportionalitybetween h and p A - p B if the reservoirs arevery large.

A glass jar weighs 30 g. The jar weighs 80 g when filled with water and it weighs 105 g when filled with syrup. Calculate the specific gravity of the viscous liquid.