5. A cowboy puts his right ear to a railway track and hears the sound of an approaching train. He then hears the sound of the same train with his left ear through the air 0.87 s later. If the speed of sound in the air is 340 m/s and the speed through steel is 6100 m/s, should the cowboy be getting out of the way (how far away is the train)?

A person stands at a point 380 m in front of the face of a sheer cliff. If the person shouts, how much time will elapse before an echo is heard? Assume the speed of sound is 344 m/s

There is a tube of length 1.0 m with one end closed. You clapped your hand at the mouth of the tube once. The echo of the clap came back after 6.0 milliseconds. What is the velocity of sound in the tube ? 330 m/s O 320 m/s 290 m/s O 170 m/s

An explosion occurs at the end of a pier. The sound reaches the other end of the pier by traveling through three media: air, fresh water, and a slender metal handrail. The speeds of sound in air, water, and the handrail are 342, 1400, and 5140 m/s, respectively. The sound travels a distance of 136 m in each medium. (a) After the first sound arrives, how much later does the second sound arrive? (b) After the first sound arrives, how much later does the third sound arrive?

During a thunderstorm, a 5.5 s difference between observing a lightening flash and hearing the resultant thunder.  How far away in km and mi was the lightening flash? (The speed of sound is 344 m/s)

Ultrasonic diagnostics may be used to locate a tumor in an organ such as the liver. If the speed of the wage as it travels through the liver is 6.7% less than when it is traveling through the surrounding medium, determine the depth of the tumor.

A cannon fires a shell directly at you from 2000 m away, at a speed of 216 m/s. The speed of sound in the air is 346 m/a. If your eyes have been plucked out by an angry seagull, how long do you have to react after hearing the shot?