dontcare95
05.11.2020 •
Physics
A 70 kg sky diver is falling at a constant speed near the surface of the earth. The magnitude of the force of air friction acting on the skydiver is?
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Ответ:
The time difference between the arrival of primary wave and secondary wave in a seismogram is called lag time. The primary wave always travels faster than the secondary wave, thus the difference between the two can be obtained by estimating the difference between the arrival time of the two waves/.