7. An industrial container holds 1500 N of water. The area of the inside bottom of the container is 30 square meters. What pressure does the water exert on the bottom of the container? (show your work) Your answer

Dry air is primarily composed of nitrogen. In a classroom demonstration, a physics instructor pours 2.00 L of liquid nitrogen into a beaker. After the nitrogen evaporates, how much volume does it occupy if its density is equal to that of the dry air at sea level? Liquid nitrogen has a density of 808 kg/m3.

You can squirt water from a garden hose a considerably greater distance by partially covering the opening with your thumb. Explain this works.

A large tanker truck can carry 20 tons (40.000 lb) of liquid (a) What volume of water can it carry? (b) What volume of gasoline can it carry?

A 75.0-kg floats in freshwater 3.00% of his volume above water when his are empty, and 5.00% of his volume above water when his lungs are full. Calculate the volume of air inhales—called his lung capacity—in liters. (b) Does lung volume seem reasonable?

, Water flows straight down from an open faucet (Figure 4.55). The cross-sectional area of the faucet is 1.8 10-4 ma, and the speed of the water as it leaves me faucet is 0.85 m/s. Ignoring air resistance, find the cross-sectional area of the water stream at a point 0.10 m below the faucet opening.

The dolphin tank at an amusement park is rectangular in shape with a length of 40.0 m, a width of 15.0 m, and a depth of 7.50 m. The tank is filled to the brim to provide maximum splash during dolphin shows. What is the total amount of force exerted by the water on a. the bottom of the tank, b. the longer wall of the tank, and c. the shorter wall of the tank?

A trash compactor can compress its contents to 0.350 times their original volume. Neglecting mass of air expelled, by what factor is the density of be rubbish increased?

(a) Estimate the time it would take to a private swimming pool with a capacity of 80,000 L using a garden hose delivering 60 L/min. (b) How long would it take if you could divert a moderate size river, flowing at 5000 m3/s into pool?

Explain why the fluid reaches equal levels on either side of a manometer if both sides are open to the atmosphere, even if the tubes are of different diameters.