Physics

Problem

Transverse waves on a string have wave speed

12.0 \text{ m/s}

, amplitude

0.05 \text{ m}

and wavelength

0.4 \text{ m}

. The waves travel in the

+x

-direction and at

t = 0

the

x = 0

end of the string has zero displacement and is moving upwards. a. Write a wave function describing the wave. b. Find the transverse displacement of a point at

x = 0.25 \text{ m}

at time

t = 0.15 \text{ s}

. c. How much time must elapse from the instant in part (b) until the point at

x = 0.25 \text{ m}

has zero displacement?

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