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1. a train is moving at 23 m/s due east when it sounds a blast on its horn, frequency...
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Ineed
1. a train is moving at 23 m/s due east when it sounds a blast on its horn, frequency = 164 hz. what frequency is heard by the driver of a car moving due east at 15 m/s along a road parallel to the tracks? use 343 m/s for the speed of sound. show all work.
2. a laser beam from earth is reflected back from a mirror on the moon in 2.60 s. if the
distance between earth and the moon is 3.85 × 108 m, calculate the speed of light.
show all work.
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