Two Harmonic Waves Traveling in Opposite Directions Interfere to Produce

question 23

Multiple Choice

Two harmonic waves traveling in opposite directions interfere to produce a standing wave described by y = 2 sin (4x) cos (3t) where x is in m and t is in s. What is the speed (in m/s) of the interfering waves?

• A) 0.75
• B) 0.25
• C) 1.3
• D) 12
• E) 3.0

---

Definitions:

Welfare

Governmental or private aid provided to individuals or groups in need, aimed at promoting their well-being and ensuring basic necessities are met.

Constructivism

A theory in education and psychology which posits that humans construct knowledge and meaning from their experiences.

Manufacturing Plant

A factory or industrial site where goods are produced or processed through machinery and labor.

Giving Praise

The act of expressing approval or admiration towards someone, often contributing to positive reinforcement and motivation.