Question 3. A speaker is producing a sound with an intensity of 7.0 W/m² on a rectangular detector, of dimensions 110 cm by 100 cm. How long does it take for the detector to receive 2000 J of sound energy? Express your answer to the nearest second. Do NOT include units in your answer. Your Answer: Your Answer
Question 3. A speaker is producing a sound with an intensity of 7.0 W/m² on a rectangular detector, of dimensions 110 cm by 100 cm. How long does it take for the detector to receive 2000 J of sound energy? Express your answer to the nearest second. Do NOT include units in your answer. Your Answer: Your Answer
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Transcribed Image Text:Question 1
Waves produced at one end of a swimming pool travel at a speed of 4.0 m/s, and
reflect off the other end (which acts as a fixed end). If the pool is 8.0 m long, what
frequency of waves will result in the formation of a standing wave? Consider this as a
1-dimensional system.
0.30 Hz
0.10 Hz
0.25 Hz
0.20 Hz
Question 2/
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A column is open at one end and filled with an unknown gas, such that the speed of
sound is unknown. The column is 37.3 cm long, and resonates at the first harmonic
at 478 Hz. What is the speed of the sound in this gas?
State your answer the the nearest m/s, but do not include units in your answer.
Your Answer:
357
Your Answer
Question 3 (
A speaker is producing a sound with an intensity of 7.0 W/m2 on a rectangular
detector, of dimensions 110 cm by 100 cm. How long does it take for the detector
to receive 2000 J of sound energy?
Express your answer to the nearest second. Do NOT include units in your answer.
Your Answer:
Your Answer
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