A train whistle is heard at 250 Hz as the train approaches town. The train cuts its speed in half as it nears the station, and the sound of the whistle is then 240 Hz. ▼ What is the speed of the train before slowing down? Express your answer to two significant figures and include the appropriate units. V1 = Part B Value v2 = Units What is the speed of the train after slowing down? Express your answer to two significant figures and include the appropriate units. HA Value ? Units ?

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Chapter1: Units, Trigonometry. And Vectors
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A train whistle is heard at 250 Hz as the train approaches town. The train cuts
its speed in half as it nears the station, and the sound of the whistle is then
240 Hz.
Part A
What is the speed of the train before slowing down?
Express your answer to two significant figures and include the appropriate units.
V1 =
Part B
Value
v2 =
What is the speed of the train after slowing down?
Express your answer to two significant figures and include the appropriate units.
LO
μA
Units
Value
?
Units
?
Transcribed Image Text:A train whistle is heard at 250 Hz as the train approaches town. The train cuts its speed in half as it nears the station, and the sound of the whistle is then 240 Hz. Part A What is the speed of the train before slowing down? Express your answer to two significant figures and include the appropriate units. V1 = Part B Value v2 = What is the speed of the train after slowing down? Express your answer to two significant figures and include the appropriate units. LO μA Units Value ? Units ?
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