Mathematics, 07.03.2020 04:33 javink18
If a sound with frequency fs is produced by a source traveling along a line with speed vs. If an observer is traveling with speed vo along the same line from the opposite direction toward the source, then the frequency of the sound heard by the observer is fo = c + vo c − vs fs where c is the speed of sound, about 332 m/s. (This is the Doppler effect.) Suppose that, at a particular moment, you are in a train traveling at 42 m/s and accelerating at 1.2 m/s2. A train is approaching you from the opposite direction on the other track at 47 m/s, accelerating at 1.7 m/s2, and sounds its whistle, which has a frequency of 441 Hz. At that instant, what is the perceived frequency that you hear? (Round your answer to one decimal place.)
Answers: 1
Mathematics, 21.06.2019 22:30, tiannaetzel
Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319
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Mathematics, 22.06.2019 01:00, jtgarner402
The computer that controls a bank's automatic teller machine crashes a mean of 0.6 times per day. what is the probability that, in any seven-day week, the computer will crash less than 5 times? round your answer to four decimal places
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If a sound with frequency fs is produced by a source traveling along a line with speed vs. If an obs...
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