Physics

Problem

14.8 A transverse harmonic wave on a string is described by

y(x, t)=3.0 \sin (36 \mathrm{t}+0.018 x+\pi / 4)

where

x

and

y

are in cm and

t

in s . The positive direction of

x

is from left to right. (a) Is this a travelling wave or a stationary wave ? If it is travelling, what are the speed and direction of its propagation ? (b) What are its amplitude and frequency ? (c) What is the initial phase at the origin ? (d) What is the least distance between two successive crests in the wave ?

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