The door and the seals on an aircraft are subject to a tremendous amount of force during flight. At an altitude of 10 000 m (about 33 000 ft), the air pressure outside the airplane is only while the inside is still at normal atmospheric pressure, due to pressurization of the cabin. Calculate the force due to the air pressure on a door of area 3.0 m2.
Answer to relevant QuestionsThe pressure exerted by a person’s lungs can be measured by having the person blow as hard as possible into one side of a manometer. If a person blowing into one side of an open tube manometer produces an 80-cm difference ...A hydraulic lift in a garage has two pistons: a small one of cross-sectional area 4.00 cm2 and a large one of cross-sectional area 250 cm2. (a) If this lift is designed to raise a 3500-kg car, what minimum force must be ...An object has a weight of 8.0 N in air. However, it apparently weighs only 4.0 N when it is completely sub-merged in water. What is the density of the object? A block of iron quickly sinks in water, but ships constructed of iron float. A solid cube of iron 1.0 m on each side is made into sheets. To make these sheets into a hollow cube that will not sink, what should be the minimum ...The speed of blood in a major artery of diameter 1.0 cm is 4.5 cm/s. (a) What is the flow rate in the artery? (b) If the capillary system has a total cross-sectional area of 2500 cm2, the average speed of blood through the ...
Post your question