World Languages
World Languages, 26.02.2020 13:10, rudru10

Asounding body emitting a frequency of 150 hz is dropped from a height. during its fall under gravity it crosses a balloon moving upwards with a constant velocity of 2m/s one second after it started to fall. the difference in the frequency observed by the man in balloon just before and just after crossing the body will be: (given that -velocity of sound = 300m/s; g = 10m/s2)

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Asounding body emitting a frequency of 150 hz is dropped from a height. during its fall under gravit...

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