Questions from College Physics

Q: Suppose 1.00 mol of oxygen is heated at constant pressure

Suppose 1.00 mol of oxygen is heated at constant pressure of 1.00 atm from 10.0°C to 25.0°C. (a) How much heat is absorbed by the gas? (b) Using the ideal gas law, calculate the change of volume of...

Q: Rank the processes in order of the net work done by the

Rank the processes in order of the net work done by the system per cycle, from greatest to least. Rank positive work done by the system (as in an engine) higher than negative work done by the system (...

Q: An airline executive decides to economize by reducing the amount of fuel

An airline executive decides to economize by reducing the amount of fuel required for long-distance flights. He orders the ground crew to remove the paint from the outer surface of each plane. The pai...

Q: (a) Which might describe a heat engine? (

(a) Which might describe a heat engine? (b) Which might describe a heat pump? (c) Which might describe a refrigerator? Explain.

Q: If an electron moves from one point at a potential of −

If an electron moves from one point at a potential of −100.0 V to another point at a potential of +100.0 V, how much work is done by the electric field?

Q: A heat engine follows the cycle shown in the figure.

A heat engine follows the cycle shown in the figure. (a) How much net work is done by the engine in one cycle? (b) What is the net heat flow into the engine per cycle?

Q: Repeat Problem 51(a), this time assuming the electron is

Repeat Problem 51(a), this time assuming the electron is ultra- relativistic (E ≈ pc). Is the assumption justified?

Q: An object located at the origin and having mass M explodes into

An object located at the origin and having mass M explodes into three pieces having masses M/4, M/3, and 5M/12. The pieces scatter on a horizontal frictionless xy-plane. The piece with mass M/4 flies...

Q: A surgeon is attempting to correct a detached retina by using a

A surgeon is attempting to correct a detached retina by using a pulsed laser. (a) If the pulses last for 20.0 ms and if the output power of the laser is 0.500 W, how much energy is in each pulse? (b...

Q: Using the stress-strain graph for bone (Fig. 10

Using the stress-strain graph for bone (Fig. 10.4c), calculate Young’s moduli for tension and for compression. Consider only small stresses.