Waves 8.9: Additional Problem 1

Red Animation Green Animation Blue Animation

Description

The above simulations show disturbances on two identical strings (position is in centimeters and time is in seconds).

Question

At t=2.5 seconds, describe the superposition of each of the three pairs of waves.

Answer

Red - Their superposition has a large peak, a depression, and then another large peak.

Green - Their superposition is zero.

Blue - Their superposition has a large peak on the left and a smaller trough on the right.

Reference

See Giancoli-PA: 11-11, Giancoli-SE: 15-6.

Credits

Physlet problem authored by Wolfgang Christian.  Modifications by Laura Cupples and Mario Belloni.

2000 by Wolfgang Christian, Laura Cupples,  and Mario Belloni