Questions from College Physics

Q: 11. Given 1 mole of an ideal gas, in a

11. Given 1 mole of an ideal gas, in a state characterized by PA, VA, a change occurs so that the final pressure and volume are equal to PB, VB, where VB > VA. Which of these is true? (a) The heat sup...

Q: 1. An alpha particle (charge +2e and mass 4mp

1. An alpha particle (charge +2e and mass 4mp) is on a collision course with a proton (charge +e and mass mp). Assume that no forces act other than the electrical repulsion. Which one of these stateme...

Q: A spring fixed at one end is compressed from its relaxed position

A spring fixed at one end is compressed from its relaxed position by a distance of 0.20 m. See the graph of the applied external force Fx versus the compression x of the spring. (a) Find the work don...

Q: 1. Among these choices, which is/are correct units

1. Among these choices, which is/are correct units for electric field? (a) N/kg only (b) N/C only (c) N only (d) N·m/C only (e) V/m only (f) both N/C and V/m 2. Two charges are located...

Q: A piece of gold wire of length L has a resistance R0

A piece of gold wire of length L has a resistance R0. Suppose the wire is drawn out so that its length increases by a factor of 3. What is the new resistance R in terms of the original resistance?

Q: X-rays illuminate a target and the scattered x-rays

X-rays illuminate a target and the scattered x-rays are detected. Given the wavelength λ of the incident x-rays and the scattering angle θ, rank the scattered x-rays from largest wavelength to smalles...

Q: A certain capacitor stores 450 J of energy when it holds 8

A certain capacitor stores 450 J of energy when it holds 8.0 × 10−2 C of charge. What is (a) the capacitance of this capacitor and (b) the potential difference across the plates?

Q: 11. In the diagram, which two points are closest to

11. In the diagram, which two points are closest to being at the same potential? (a) A and D (b) B and C (c) B and D (d) A and C 12. In the diagram, which point is at the lowest potential? (a) A (b)...

Q: An asteroid hits the Moon and ejects a large rock from its

An asteroid hits the Moon and ejects a large rock from its surface. The rock has enough speed to travel to a point between Earth and the Moon where the gravitational forces on it from Earth and the Mo...

Q: Explain the differences between average current, rms current, and peak

Explain the differences between average current, rms current, and peak current in an ac circuit.