# Waves, physics homework help

*label*Science

*timer*Asked: Apr 28th, 2016

*account_balance_wallet*$5

### Question Description

A sinusoidal transverse wave travelling on a string is described at t = 2.0 s by

y(x) = 0.10 sin(4πx + (33π/4))

where x and y are in metres. At the point x= 1.0 m in the string, the displacement as a function of time is given by

y(t) = 0.10 sin((17π/4) + 4πt)

.

a) What are the wavelength and amplitude of the wave?

b) What is the frequency (in Hz) and direction of propagation of the wave?

c) What is the speed of the wave?

d) Write down the full expression for the displacement of the string, y(x, t), at position, x and time, t.

e) Describe a wave whose simultaneous presence in the string would lead to a standing wave.

## Tutor Answer

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