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A car sounds its horn

A train moving with a speed of 31.8 m/s sounds a 136-Hz horn. Suppose a stationary observer sounds a horn that is identical to
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2. asked by cassie
3. 1,640 views
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 42 dB by an observer 10 km
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2. asked by Jake
3. 893 views
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 53 dB by an observer 11 km
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2. asked by Anonymous
3. 539 views
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 53 dB by an observer 11 km
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2. asked by Anonymous
3. 1,176 views
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 59 dB by an observer 14 km
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2. asked by Anonymous
3. 564 views
A man driving a car toward a large vertical wal sounds his horn. The car is traveling at 81 km/h. The echo off the wall is heard
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2. asked by Katherine
3. 851 views
A car travelling at 90 km/hr sounds it horn as it approaches a stationary cyclist.if the car horn is at 512 Hz and temperature
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2. asked by Allen
3. 657 views
A car sounds its horn (502 Hz) as it approachs a pedestrian by the side of the road. The pedestrian has perfect pitch and
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2. asked by Melissa
3. 1,321 views
I need help with this question.A commuter train blows its horn as it passes a passenger platform at a constant speed of 55.0
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2. asked by Chris Adison
3. 689 views
A train is moving parallel and adjacent to a highway with a constant speed of 23 m/s. A car is traveling in the same direction
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2. asked by anonumous
3. 770 views