A Vibrating Tuning Fork of 300 Hz Is Held Above $\Delta$

question 81

Multiple Choice

A vibrating tuning fork of 300 Hz is held above a tube filled with water.The first resonance is heard when the water level is lowered by 26.1 cm.A second tuning fork of 400 Hz is held above the tube,and its first resonance occurs when the water level is lowered by 19.3 cm from the top.Calculate a value for the speed of sound.(Hint: remember the small end correction $\Delta$ L at the top of the tube.)

• A)333 m/s
• B)343 m/s
• C)325 m/s
• D)315 m/s
• E)338 m/s

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Definitions:

Variable Costs

Outlays that directly correspond to production levels, encompassing costs for raw materials and direct labor.

Required Rate Of Return

The minimum percentage return an investor expects to achieve on an investment to consider it worthwhile.

Average Operating Assets

The average value of the assets used in the production or operation of a company over a certain period.

Net Operating Income

The total earnings from a company's operations, after subtracting operating expenses but before interest and taxes.