A Thin 200-M String of Mass 50

question 13

Multiple Choice

A thin 2.00-m string of mass 50.0 g is fixed at both ends and under a tension of 70.0 N.If it is set into small-amplitude oscillation,what is the frequency of the first harmonic mode?

• A) 6.61 Hz
• B) 13.2 Hz
• C) 26.5 Hz
• D) 52.9 Hz

---

Definitions:

Conditioned Stimulus (CS)

A stimulus that was once neutral but, after being paired with a fundamental stimulus, ultimately induces a learned reaction.

Unconditioned Stimulus (US)

In classical conditioning, a stimulus that unconditionally—naturally and automatically—triggers a response.

Conditioned Response (CR)

A learned response to a previously neutral stimulus that, after being repeatedly paired with an unconditioned stimulus, elicits a reaction.

Unconditioned Stimulus (US)

In classical conditioning, a stimulus that instinctively and involuntarily elicits a reaction without any previous learning.