1.) There was an earthquake in Salt Lake City, Utah, on March 18, 2020, in the morning at  9 hours, 9 minutes, and 45 seconds Mountain Standard Time (9:9:45 MST).  If the velocity of the p-wave is 7.3 km/sec and the velocity of the s-wave is 5.1 km/sec and the s-p time lag is 16 seconds, what is the distance in kilometers from Salt Lake City to the focus of the earthquake?  Explain how you calculated the answer.