Answered: You attach two different wave machines…

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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Question

You attach two different wave machines (like the “bar” waves from class demo) together. One set is composed of “long” bars and the other is composed of “short” bars. You raise the first bar (located at x=0 m ) on machine 1 a distance of 2.00 cm and then begin to shake it up and down, causing a continuous wave moving to the right, going from machine 1 to machine 2. The point at x = 1.5 meters is where the machines are connected.

A friend watches you with a timer and finds that your hand completes 30 cycles in 5.00 seconds. Another friend takes a photograph (snapshot) of the machines, shown below. You call the time of this snapshot t = 0 seconds

a) find the frequency, wavelength and wave speed for the wave on machine 1

b) find the frequency, wavelength and wave speed for the wave on machine 2

2.5
1.5
1.
0.5
y(cm)
0.
-0.5
0.25
0.5
0.75
1
1.25
1.5
1.75
2.25
2.5
2.75
-1
-1.5
-2
-2.5
x(m)

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