Questions from College Physics

Q: A pendulum clock depends on the period of a pendulum to keep

A pendulum clock depends on the period of a pendulum to keep correct time. Suppose a pendulum clock is keeping correct time and then Dennis the Menace slides the bob of the pendulum downward on the os...

Q: The period of a simple pendulum is measured to be T on

The period of a simple pendulum is measured to be T on the Earth. If the same pendulum were set in motion on the Moon, would its period be (a) Less than T, (b) Greater than T, or (c) Equal to T?

Q: Which of the following actions will increase the speed of sound in

Which of the following actions will increase the speed of sound in air? (a) Decreasing the air temperature (b) Increasing the frequency of the sound (c) Increasing the air temperature (d) Increasing t...

Q: Suppose you’re on a hot air balloon ride, carrying a buzzer

Suppose you’re on a hot air balloon ride, carrying a buzzer that emits a sound of frequency f. If you accidentally drop the buzzer over the side while the balloon is rising at constant speed, what can...

Q: As an airplane flying with constant velocity moves from a cold air

As an airplane flying with constant velocity moves from a cold air mass into a warm air mass, does the Mach number (a) Increase, (b) Decrease, or (c) Remain the same?

Q: Which of the following frequencies are higher harmonics of a string with

Which of the following frequencies are higher harmonics of a string with fundamental frequency of 150 Hz? (a) 200 Hz (b) 300 Hz (c) 400 Hz (d) 500 Hz (e) 600 Hz

Q: A pipe open at both ends resonates at a fundamental frequency fopen

A pipe open at both ends resonates at a fundamental frequency fopen. When one end is covered and the pipe is again made to resonate, the fundamental frequency is fclosed. Which of the following expres...

Q: Into a 0.500-kg aluminum container at 20.

Into a 0.500-kg aluminum container at 20.0°C is placed 6.00 kg of ethyl alcohol at 30.0°C and 1.00 kg ice at -10.0°C. Assume the system is insulated from its environme...

Q: Balboa Park in San Diego has an outdoor organ. When the

Balboa Park in San Diego has an outdoor organ. When the air temperature increases, the fundamental frequency of one of the organ pipes (a) Increases, (b) Decreases, (c) Stays the same, or (d) Is impos...

Q: You are tuning a guitar by comparing the sound of the string

You are tuning a guitar by comparing the sound of the string with that of a standard tuning fork. You notice a beat frequency of 5 Hz when both sounds are present. As you tighten the guitar string, th...