College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Can someone solve this problem for me is part of homework and I don’t understand how to isolate
Transcribed Image Text:A bat sends an ultrasound signal of 30 kHz frequency towards a prey. Does the prey move away or towards
the bat if the signal the bat receives back has 28.5 kHz frequency? What is the speed of the prey relative to
the bat? Take 340 m/s for the speed of sound.
The prey moves away from
the bat.
The speed of the prey, Vprey = 340
X Units m/s
What frequency will the bat detect if the prey changes its direction of motion to the opposite but keeps
the same speed?
The frequency detected by the bat, f = 1.5
X Units kHz
Question Help: O Message instructor D Post to forum
V Question 13
B 0.04/1 pt G Details
Two submarines A and B are approaching each other along a straight line as shown below. The speed of
submarine A is VA = 22 m/s, the speed of submarine B is unknown. Submarine A sends a 470-Hz acoustic
signal towards submarine B and receives a reflected signal of a higher frequency of 504 Hz. What is the
speed of submarine B if the speed of sound in water is 1500 m/s?
V
V,
B
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