Reference no: EM13963876
1. What conditions must be met to produce simple harmonic motion?
2. As you pass a semitractor-trailer on an interstate, you notice that its trailer is bouncing up and down slowly. Is it more likely that the trailer is heavily loaded or nearly empty? Explain.
3. When sound passes from one medium to another where its speed is different, does its frequency or wavelength change? Explain briefly.
4.Dolphins make sounds in air and water. What is the ratio of the wavelength of a sound in air to its wavelength in water? Assume the air temperature is 20.0 degrees C. (Hint: you must look up the speed of sound in air and in water to answer this question.)
5. Radio waves transmitted by an FM transmitter have a frequency of 89.90 MHz. What is the wavelength of these waves? (Radio waves, like all electromagnetic waves, travel at the speed of light.)
6. Consider the equation
f(x) = A sin(kx - omega t)
where I have used the word "omega" instead of the Greek symbol, on account of browser compatability problems. This describes a wave propagating along the x-axis.
(A) What is the meaning of the constant "A"?
(B) Is this wave traveling in the positive direction or the negative direction?
(C) "k" is called the propagation number (and has other names.) If "k" has a value of 12.6 per meter, what is the wavelength of the wave?
(D) "Omega" is called the angular frequency. If "omega" has a value of 400 radians per second, what is the frequency ("f") of the wave?
7. What happens to the intensity of a wave if you double the amplitude, "A"?
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Gender and according to the choice of their major
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Find the beat frequency of the combined waves
: Two sound waves are emitted: y1, with frequency f1, and y2, with frequency f2, with other constants identical, as expressed below. Distances in meters, times in seconds, and angles in radians: y1 = .02 sin(8 Pi x - 108 Pi t) (2) y2= .02 sin (8 Pi x..
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Write equations of motion for the system
: A 50 kg crate slides down a 6 m ramp inclined at an angle of 35 degrees to the horizontal. A worker pushes on the crate parallel to the ramp so that it slides down with a constant velocity. If the coefficient of kinetic friction is .33
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What is the wavelength of these waves
: Radio waves transmitted by an FM transmitter have a frequency of 89.90 MHz. What is the wavelength of these waves? (Radio waves, like all electromagnetic waves, travel at the speed of light.)
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Determine the weight of the flywheel
: If punching takes place in 1/10 of a second and rpm of the flywheel varies from 160 to 140, determine the weight of the flywheel having radius of gyration K = 1m
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Use any numerical integration method to solve
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Determine reactions at the supports
: Determine reactions at the supports. Draw moment diagram. Determine reactions at D if, in addition to the applied load, support D settles 0.02 m.
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