Two Identical Strings, a and B, Have Nearly the Same

question 47

Multiple Choice

Two identical strings, A and B, have nearly the same tension.When they both vibrate in their fundamental resonant modes, there is a beat of 3 Hz.When string B is tightened slightly, to increase the tension, the beat frequency becomes 6 Hz.This means:

• A)that before tightening A had a higher frequency than B, but after tightening, B has a higher frequency than A
• B)that before tightening B had a higher frequency than A, but after tightening, A has a higher frequency than B
• C)that before and after tightening A has a higher frequency than B
• D)that before and after tightening B has a higher frequency than A
• E)none of the above

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Definitions:

Sales Discounts

Reductions in the price of goods or services offered to customers, typically as an incentive to encourage prompt payment.

Ending Inventory

The total value of goods available for sale at the end of an accounting period.

Cost-to-Retail Ratio

A method used in retail to calculate the estimated ending inventory value at retail prices by dividing the cost of goods available for sale by the retail price of the goods.

Net Markups

The overall increase in the selling price of goods, net of any reductions or markdowns, calculated over the cost price.