...Waves

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1.

A certain transverse traveling wave on a string can be represented by

where y is the displacement of the string, x is position of a point along the string and t is the time.What are the units of the coefficients of the x-term and the t-term in the above expression? What do we call those coefficients?



2.

Suppose you suspend a 3 meter nylon rope from a hook in the ceiling and tie a 10 kg ball to the end of the rope. The mass of the rope is 0.5 kg. Now you pluck the rope. That sends a wave up and down the rope. Estimate the speed of propagation of that wave.



3.

The wavelength of a simple harmonic wave is

proportional to the frequency of the wave

proportional to the speed of propagation

proportional to the energy of the wave

all of above





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