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Physics, 03.11.2021 03:50 ghernadez

A railway-line testing-team checking a continuous rail of length 250 m. One tester strikes one end of the rail with a hammer. The other tester hears the sound transmitted through the air and transmitted through the rail. He hears the two sounds at different times. [The speed of sound in steel is 5000 m/s and in air is 330m/s.] b) As the sound wave passes from the end of the beam steel into air.
State the effect of that on
the frequency of the sound………………………………………

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