Physics, 03.12.2019 19:31, carsengilbert
Atrain station bell gives off a fundamental tone of 500 hz as the train approaches the station at a speed of 20 m/s. if the speed of sound in air is 335 m/s, what will be the apparent frequency of the bell to an observer riding the train?
a. 532 hz
b. 530 hz
c. 470 hz
d. 472 hz
Answers: 2
Physics, 21.06.2019 19:30, ctuek5990
The 20@kg wheel has a radius of gyration about its center g of kg = 300 mm. when it is subjected to a couple moment of m = 50 n # m, it rolls without slipping. determine the angular velocity of the wheel after its mass center g has traveled through a distance of sg = 20 m, starting from rest.
Answers: 3
Physics, 22.06.2019 10:00, kaniyawilhite
If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone
Answers: 2
Atrain station bell gives off a fundamental tone of 500 hz as the train approaches the station at a...
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