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taurus [48]
3 years ago
12

Two truckers are traveling directly away from each other at the same speed. If one trucker sounds her horn at a frequency of 221

Hz, and the other trucker hears a frequency of 210 Hz, determine the speed of the trucks. Use the speed of sound as 343 m/s.
Physics
1 answer:
8_murik_8 [283]3 years ago
6 0

Answer:

v = 8.8 m /s

Explanation:

For listener and source going away from each other the formula of Doppler effect is as follows

\frac{f}{f_0} = \frac{V-v}{V+v}

V is velocity of sound , v is velocity of listner and source of sound

f₀ is apparent frequency and f is real frequency

V = 343 , v = ? ,f = 210 , f₀ = 221

Put these value in the relation above

[tex]\frac{210}{221} = \frac{343-v}{343+v}[/tex]

v = 8.8 m /s

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The aircraft wing from problem 6 experiences temperature extremes that span 210 degrees Celsius. The component for the wing will
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Answer:

α = 2,857 10⁻⁵ ºC⁻¹

Explanation:

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If runner A is running at 7.50 m/s and runner B is running at 7.90 m/s, how long will it take runner B to catch runner A if runn
yaroslaw [1]

Answer:

t= 137.5 s

Explanation:

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