Physics
02.12.2021 10:32
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A source emits sound with a frequency of 860 Hz. It is moving at 20.0 m/s toward
A source emits sound with a frequency of 860 Hz. It is moving at 20.0 m/s toward a stationary reflecting wall. If the speed of sound is 343 m/s, what frequency does an observer riding with the source hear
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kseniyayakimov
4,8(21 marks)
Explanation:
f = 860 Hz
velocity of source, vs = 20 m/s
velocity of sound, v = 343 m/s
use the formula of doppler's effect
the frequency reflected from the wall is
f' = 812.62 Hz
Frequency heard by the observer
f'' = 862.93 Hz
paulusl19
5,0(44 marks)
theu correct answer is false
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