On July 5*2019, two earthquakes struck Trona, California. The largest one was 7.1 on the Richter Scale. It took 123.6 sec for this earthquake to be felt in Long Beach, 192 miles away. (1mile = 1609.3meters).
a) What was the velocity (v) of the earthquake waves? (2500m/s)
b) If the frequency (f) of the wave was 15Hz, what was the wavelength(A) of this seismic wave? (167m)
c) What was the time for one wave to pass, the period (T)? (0.67sec)