Homework Statement
What is the shortest horizontal distance from a crest to a point of zero acceleration?
Homework Equations
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The Attempt at a Solution
Dont know how to begin...
Homework Statement
A periodic transverse wave is established on a string such that there are exactly two cycles traveling along a 3.0m section of the string. The crests move at 20 m/s. What is the frequency of the wave?
Homework Equations
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The Attempt at a Solution
Dont know how...
Homework Statement
An unstretched spring has a length of 0.30m. When the spring is stretched to a total length of 0.60m, it supports traveling waves moving at 4.5 m/s. How fast will waves travel on this spring if it is stretched 0.90m?
Homework Equations
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The Attempt at a Solution
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Homework Statement
A car moving at 35 m/s approaches a stationary whistle that emits a 220 Hz sound. The speed of sound is 343 m/s. What is the speed of sound relative to the driver of the car?
Homework Equations
fo = fs [1 +/- vo/v] / [1 +/- vs/v]
The Attempt at a Solution
Dont...