A Vibrating Tuning Fork of 725 Hz Is Held Above $\Delta$

question 77

Multiple Choice

A vibrating tuning fork of 725 Hz is held above a tube filled with water.Successive resonances are heard when the water level is lowered by 11.5 cm and 34.5 cm from the top of the tube.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:

MC

MC, or Marginal Cost, is the cost of producing one additional unit of a product, crucial for understanding profit maximization in businesses.

Marginal Revenue

The additional income from selling one more unit of a good; essentially the change in total revenue from an additional unit sold.

Perfect Competition

An idealized market structure in which there are many buyers and sellers, no barriers to entering or exiting the market, and products are identical.

Economic Profit

The difference between total revenue and total costs, including both explicit and implicit costs, measuring the true profitability of a firm.