Questions from College Physics

Q: A large water tank is 3.00 m high and filled

A large water tank is 3.00 m high and filled to the brim, the top of the tank open to the air. A small pipe with a faucet is attached to the side of the tank, 0.800 m above the ground. If the valve is...

Q: Water flowing through a garden hose of diameter 2.74 cm

Water flowing through a garden hose of diameter 2.74 cm fills a 25.0-L bucket in 1.50 min. (a) What is the speed of the water leaving the end of the hose? (b) A nozzle is now attached to the end of th...

Q: (a) Calculate the mass flow rate (in grams per

(a) Calculate the mass flow rate (in grams per second) of blood (p = 1.0 g/cm3) in an aorta with a cross-sectional area of 2.0 cm2 if the flow speed is 40. cm/s. (b) Assume that the aorta branches to...

Q: A liquid (p = 1.65 g/ cm3)

A liquid (p = 1.65 g/ cm3) flows through a horizontal pipe of varying cross section as in Figure P9.36. In the first section, the cross-sectional area is 10.0 cm2, the flow speed is 275 cm/s, and the...

Q: A hypodermic syringe contains a medicine with the density of water (

A hypodermic syringe contains a medicine with the density of water (Fig. P9.37). The barrel of the syringe has a cross-sectional area of 2.50 x 10-5 m2. In the absence of a force on the plunger, the p...

Q: When a person inhales, air moves down the bronchus (windpipe

When a person inhales, air moves down the bronchus (windpipe) at 15 cm/s. The average flow speed of the air doubles through a constriction in the bronchus. Assuming incompressible flow, determine the...

Q: A jet airplane in level flight has a mass of 8.

A jet airplane in level flight has a mass of 8.66 x 104 kg, and the two wings have an estimated total area of 90.0 m2. (a) What is the pressure difference between the lower and upper surfaces of the w...

Q: A man attaches a divider to an outdoor faucet so that water

A man attaches a divider to an outdoor faucet so that water flows through a single pipe of radius 9.00 mm into two pipes, each with a radius of 6.00 mm. If water flows through the single pipe at 1.25...

Q: One container is filled with argon gas and another with helium gas

One container is filled with argon gas and another with helium gas. Both containers are at the same temperature. Which atoms have the higher rms speed? (a) Argon, (b) Helium, (c) They have the same sp...

Q: In a water pistol, a piston drives water through a larger

In a water pistol, a piston drives water through a larger tube of radius 1.00 cm into a smaller tube of radius 1.00 mm as in Figure P9.41. (a) If the pistol is fired horizontally at a height of 1.50 m...