when the outdoor emergency warning siren at Cheryl's school was tested, the sound from the siren took 7,0 seconds to reach her house located 2400 miles from tohe school. What is the speed of sound in air?
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Expert's answer
2012-10-04T08:24:40-0400
2400 miles = 3842.4 kilometers 3842.4 km/7 s = 549 km/s speed of sound can not be that big, so there is a mistake in the text
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