Chlamydia is one of the most common STDs, particularly among college-aged men and women. Fortunately, unlike in the old days, it's now quite easy and painless to get tested and treated for a chlamydia infection. In recent years, tests have been developed that can detect chlamydia and be completed in just a few hours.
Seismograms A, B, C, and D. show, in Greenwich time, the arrival times of the. earthquake waves at the four stations. The P-wave generated by this earthquake took 2 minutes. and 40 seconds to reach one of the seismic stations.
Determine the distance between an earthquake and seismic station if the first S wave arrives three minutes after the first P wave.