Two Taut Strings of Identical Mass Per Unit Length Are

question 79

Multiple Choice

Two taut strings of identical mass per unit length are stretched with the same tension with their ends fixed,but one string is 0.330 cm longer than the other.Waves on these strings propagate at 34.0 m/s.The fundamental frequency of the shorter string is 258 Hz.What is the beat frequency when each string is vibrating at its fundamental frequency?

• A)12.3 Hz
• B)9.00 Hz
• C)12.0 Hz
• D)12.7 Hz
• E)11.3 Hz

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Definitions:

Operant Conditioning

A learning process where the strength of a behavior is modified by reinforcement or punishment.

Observational Conditioning

A learning process where an individual acquires behaviors by observing and imitating others.

State-Dependent Learning

The theory that information learned in a specific state of mind (e.g., emotional, physiological) is more easily recalled when in that same state.

Conditioned Stimulus

An initially neutral signal that, once linked with an unconditioned stimulus, ultimately elicits a conditioned response.