9. Assuming an air density of 1.21 kg/m^3, determine how many kilograms of air occupy a classroom that has a 100 square meter floor area and a 4 meter high ceiling. b). What is the weight of the air in the room in Newtons (N)? c) What is the weight of the air in pounds (lbs.) Your answer

The density of air is 1.3 kg/m3 at sea level. From your knowledge of air pressure at ground level, estimate the height of the atmosphere. As a simplifying assumption, take the atmosphere to be of uniform density up to some height, after which the density rapidly falls to zero. (In reality, the density of the atmosphere decreases as we go up.) (This question is courtesy or Edward F. Redish. For more questions of this type, see http://www.physics.umd.edu/perg/.)

(a) A rectangular gasoline tank can hold 50.0 kg of gasoline when full. What is the depth of the tank if it is 0.500-m wide by 0.900-m long? (b) Discuss whether this gas tank has a reasonable volume for a passenger car.

A classroom that has a 200-square meter floor area and a 3.5 meter-high ceiling. a) What is the volume of the room (in m^3). b) Assuming a room temperature of 20 deg C, what is the density of the air in the room? c) How many kilograms of air occupy the room? d) What is the weight of the air in Newtons (N)? e) What is the weight of the air in Pounds (lbs.)?

An auditorium measures 40mx20mx12m.the density of air is 1.20kg/m^3. What are a) the volume of the room in the cubic feet. b) the weight of air in the room in pounds?

A box-shaped metal can has dimensions 14 in. by 9 in. by 3 in. high. All of the air inside the can is removed with a vacuum pump. Assuming normal atmospheric pressure can, find the total force (in Ib) on one of the 14-by-3 in. sides. (Enter the magnitude.) Ib

1. The Air is Heavy! a) Calculate the weight of Earth's atmosphere using standard atmospheric pressure on the surface and using the mean radius of the Earth (average between polar and equatorial radius). b) Calculate the weight of Mar's atmosphere using its standard atmospheric pressure at the surface and its mean radius (look up Mar's atmospheric pressure and/or will post if needed). Agaivloz maldo 108 ripuoT iT tonininT lo ma natoau-m

A box-shaped metal can has dimensions 5 in. by 13 in. by 3 in. high. All of the air inside the can is removed with a vacuum pump. Assuming normal atmospheric pressure outside the can, find the total force (in Ib) on one of the 5-by-13 in. sides. (Enter the magnitude.) Ib