Fill in the blank
2. At 20 °C, the speed of sound in air is__________ (343/434)m/s
4 The collection of reflected sound waves is called_________
(propagation/reverberation)
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Fill in the blank
2. At 20 °C, the speed of sound in air is__________ (343/434)m/s
4 The collection of reflected sound waves is called_________
(propagation/reverberation)
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Answer:
sorry I didn't get the answer
but have a nice day