A blue whale emits a 12-Hz sound signal toward its mate. If it takes 1 minute for the signal to arrive (and both whales are swimming in icy water), how many miles apart are the whales? (Note that 1 mile is 1609 m).

Light travels at a speed of about 3×10; m/s. How many miles does a pulse of lighttravel in a time interval of 0.1s? (1 mile = 1609 m)?

An enormous thunderstorm covers Dallas-Ft. Worth. Your best friend Clark is a storm chaser and heads to the center of the storm to take some readings while you stay dry at home. While Clark is at the center of the storm, he sees and hears lightning strike a tree that is 185 m from where he is standing. You are 134 km from the tree. How long does it take for the sound to reach Clark? Assume the speed of sound is 343 m/s. How long does it take for the light to reach you?

A f = 2п , Vx (L + 0.8D) f = frequency, in hertz v = 343 meters/second (speed of sound in air) A = area of opening, in m2 V = volume of round cavity, in m³3 L = length of neck, in m D = diameter of neck, in m

During a thunderstorm, 3.0 s elapses between observing a lightning flash and hearing the resulting thunder. Approximately how far away in kilometers and miles was the lightning flash? (Assume the speed of sound is 344 m/s.) km mi

Trying to determine its depth, a rock climber drops a pebble into a chasm and hears the pebble strike the ground 3.245 later. (a) If the speed of sound in air is343 m/sat the rock climber's location, what is the depth of the chasm? (b) What is the percentage of error that would result from assuming the speed of sound is infinize?

You place your ear onto a steel railroad track and hear the sound of a distant train through the rails Δt = 2.7 seconds before you do through the air. The speed of sound in steel is vs = 6100 m/s, and and the air temperature is 36° C. Find the distance, D, to the train in meters.

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Approximately how long would it take for a telephone signal to travel 2900 mi? (Telephone signals travel at about the speed of light.)

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