Questions from College Physics

Q: The beam emerging from a ruby laser passes through a circular aperture

The beam emerging from a ruby laser passes through a circular aperture 5.0 mm in diameter. (a) If the spread of the beam is limited only by diffraction, what is the angular spread of the beam? (b) If...

Q: (a) Find the equivalent resistance between points A and B

(a) Find the equivalent resistance between points A and B for the combination of resistors shown. (b) An 18 V emf is connected to the terminals A and B. What is the current through the 1.0 â
...

Q: The three processes shown with Multiple Choice Question 8 involve a diatomic

The three processes shown with Multiple Choice Question 8 involve a diatomic ideal gas. Rank them in order of the change in internal energy, from greatest to smallest.

Q: In a refrigerator, 2.00 mol of an ideal monatomic

In a refrigerator, 2.00 mol of an ideal monatomic gas are taken through the cycle shown in the figure. The temperature at point A is 800.0 K. (a) What are the temperature and pressure at point D? (b...

Q: A balloon contains 200.0 L of nitrogen gas at 20

A balloon contains 200.0 L of nitrogen gas at 20.0°C and at atmospheric pressure. How much energy must be added to raise the temperature of the nitrogen to 40.0°C while allowing the balloon to expand...

Q: An ideal gas is heated at a constant pressure of 2.

An ideal gas is heated at a constant pressure of 2.0 × 105 Pa from a temperature of −73°C to a temperature of +27°C. The initial volume of the gas is 0.10 m3. The heat energy supplied to the gas in th...

Q: On a graph of ax versus time, what quantity does the

On a graph of ax versus time, what quantity does the area under the graph represent?

Q: If the pressure on a fish increases from 1.1 atm

If the pressure on a fish increases from 1.1 atm to 1.2 atm, its swim bladder decreases in volume from 8.16 mL to 7.48 mL while the temperature of the air inside remains constant. How much work is don...

Q: A transverse wave on a string is described by /

A transverse wave on a string is described by where A = 0.40 mm, ω = 39.27 rad/s, and k = 6.0 rad/m. Draw a motion diagram for the point x = 0 for the times t = 0, 0.010 s, 0, 0.020 s, 0.03...

Q: An ideal gas is in contact with a heat reservoir so that

An ideal gas is in contact with a heat reservoir so that it remains at a constant temperature of 300.0 K. The gas is compressed from a volume of 24.0 L to a volume of 14.0 L. During the process, the m...