Two Waves Travel Simultaneously Through the Same Medium

question 40

Multiple Choice

Two waves travel simultaneously through the same medium. The first wave is described by y₁(x,t) = (2.00 cm) cos[kx-ωt] and the second wave by y₂(x,t) = (3.00 cm) sin(kx-ωt) . What is the amplitude of the resulting wave?

• A)1.00 cm
• B)2.50 cm
• C)3.61 cm
• D)5.00 cm
• E)3.94 cm

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Definitions:

Delayed Reinforcement

A term from behavioral psychology referring to the delivery of a reward at a later time than the desired action occurred, which can still effectively reinforce the behavior.

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