Use the Following Figure for the Next Problem:
-A $\times$

question 31

Multiple Choice

Use the following figure for the next problem:
-A classic demonstration illustrating eddy currents is performed by dropping a permanent magnet inside a conducting cylinder.The magnet does not go into free fall.Instead it reaches terminal velocity and can take a few seconds to drop a length of about a meter.Suppose the mass of the magnet is 70 g and width of 1.0 cm.It falls with a terminal velocity of 10 cm/s and the length of the pipe is 80 cm.The magnitude of the Joule heating from the eddy currents is approximately

• A)0.55 J
• B)8.8 \(\times\) 10^-5 J
• C)1.1 J
• D)1.8 \(\times\) 10^-4 J
• E)None of these is correct.

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Definitions:

Hertz

The unit of frequency in the International System of Units (SI), equal to one cycle per second, used to measure the frequency of waves.

Frequency Of Sound Waves

refers to the number of complete oscillations or cycles per second of a sound wave, measured in Hertz (Hz), determining the pitch of the sound.

Pitch Discrimination

The ability to distinguish between different tones or musical notes based on their frequency, an important aspect of auditory perception.

Place Theory

A theory in psychology and physiology that suggests the perception of sound depends on where each component frequency produces vibrations along the basilar membrane of the inner ear.