How long would it take from the time you feel an earthquake for it to reach...

How long would it take from the time you feel an earthquake for it to reach another city 92.0 km away, if it shakes you with a frequency of 10 Hz and a has a wavelength of 600 m?

2.

Two trains (on separate tracks) travel toward each other, the first at 60.0 km/s and the second at 40.0 km/s. Both turn on their whistle, the first one emitting a frequency of 200 Hz and the second one emitting a frequency of 220 Hz. What frequencies do they each receive if the speed of sound in air is 330 m/s? Hint: Draw a diagram or do this one in steps. Is the source or the observer moving?

Expert Solution

genius_generous answered 2 years ago

At the speed of NASA’s fastest space probes, how long would it take to reach the...

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