A giant sea monster chases a deep sea submarine near the bottom of the North Atlantic. The submarine is moving at 30 m/s. The sea monster sends out a sonar signal (sound) of frequency 1000 Hz. The signal received by the sub has a frequency of 985 Hz. The speed of sound in saltwater is 1530 m/s. Determine the speed of the sea monster _________________ and if the sub is in trouble (yes or no)___________________

A giant sea monster chases a deep sea submarine near the bottom of the North Atlantic. The submarine is moving at 30 m/s. The sea monster sends out a sonar signal (sound) of frequency 1000 Hz. The signal received by the sub has a frequency of 985 Hz. The speed of sound in saltwater is 1530 m/s. Determine the speed of the sea monster _ and if the sub is in trouble (yes or no)___

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter13: Mechanical Waves

Section: Chapter Questions

Problem 11OQ: A source of sound vibrates with constant frequency. Rank the frequency of sound observed in the...

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In Bosnia, the ultimate test of a young nuns courage used to be to jump off a 400-year-old bridge (destroyed in 1993; rebuilt in 2004) into the River Neretva, 23 m below the bridge. (a) How long did the jump last? (b) How fan was the jumper traveling upon impact with the river? (c) If the speed of sound in air is 340 m/s, how long after the jumper took off did a spectator on the bridge hear the splash?
A source of sound vibrates with constant frequency. Rank the frequency of sound observed in the following cases from highest to the lowest. If two frequencies are equal, show their equality in your ranking. All the motions mentioned have the same speed, 25 m/s. (a) The source and observer are stationary. (b) The source is moving toward a stationary observer. (c) The source is moving away from a stationary observer. (d) The observer is moving toward a stationary source. (e) The observer is moving away from a stationary source.
If a stationary dolphin emits a call at a sound frequency of 53 kHz. The sound wave reflects off a fish moving directly towards the dolphin. And the sound wave echo returns at a frequency of 55 kHz. What is the speed of the fish? The speed of sound is 343 m/s.
You are standing on a train station platform as a train goes by close to you. As the train approaches, you hear the whistle sound at a frequency of f1 = 93 Hz. As the train recedes, you hear the whistle sound at a frequency of f2 = 79 Hz. Take the speed of sound in air to be v = 340 m/s. Find an equation for the speed of the sound source vs, in this case it is the speed of the train. Express your answer in terms of f1, f2, and v. Find the numeric value, in meters per second, for the speed of the train. Find an equation for the frequency of the train whistle fs ("s" is for "source") that you would hear if the train were not moving. Express your answer in terms of f1, f2, and v. Find the numeric value, in hertz, for the frequency of the train whistle fs that you would hear if the train were not moving.
You are standing on a train station platform as a train goes by close to you. As the train approaches, you hear the whistle sound at a frequency of f1 = 94 Hz. As the train recedes, you hear the whistle sound at a frequency of f2 = 77 Hz. Take the speed of sound in air to be v = 340 m/s. Find an equation for the speed of the sound source vs, in this case it is the speed of the train. Express your answer in terms of f1, f2, and v. Find the numeric value, in meters per second, for the speed of the train. Find an equation for the frequency of the train whistle fs ("s" is for "source") that you would hear if the train were not moving. Express your answer in terms of f1, f2, and v.
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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 150 m from where he is standing. You are 132 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? S
Two submarines A and B are approaching each other along a straight line as shown below. The speed of submarine A is VA = 20 m/s, the speed of submarine B is unknown. Submarine A sends a 500-Hz acoustic signal towards submarine B and receives a reflected signal of a higher frequency of 549 Hz. What is the speed of submarine B if the speed of sound in water is 1400 m/s? V A A f₁ The speed of submarine B, VB = What frequency does submarine B "hear"? The frequency on submarine B, fB Units m/s Units Hz V₁ B B