A 20-M String Is Fixed at Both Ends and Tightened Until

question 44

Multiple Choice

A 2.0-m string is fixed at both ends and tightened until the wave speed is 78 m/s. What is the frequency of the standing wave shown in the figure?

• A) 120 Hz
• B) 230 Hz
• C) 350 Hz
• D) 470 Hz

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Definitions:

Population Parameters

Characteristics or measures that describe aspects of a population, such as its mean, variance, or standard deviation.

Wilcoxon Rank-sum Test

A non-parametric statistical test used to compare two independent samples to determine if they come from the same distribution.

Independent Samples

Two or more groups of samples that are not related or connected in any way in the context of an experiment or study.

Relative Frequency Distributions

A distribution where each value is expressed as a relative frequency or proportion of the total number of occurrences.