Physics, 08.07.2019 12:00 angelcat9137
Three observers watch a train pull away from a station toward the right of the platform. observer a is in one of the train’s cars; observer b is on the station platform; and observer c is on another train traveling in the opposite direction along a parallel track. how would the observer in each frame of reference describe the motion of the train? according to newton’s laws of motion, how would the motion in the station platform’s frame of reference change if the conductor applied the brakes to the train? does universal gravitation affect the train? explain why or why not.
Answers: 1
Physics, 21.06.2019 22:20
The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?
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Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?
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