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Q. 74

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 487

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Short Answer

You have two small, identical boxes that generate 440 Hz

notes. While holding one, you drop the other from a 20-m-high

balcony. How many beats will you hear before the falling box hits

the ground? You can ignore air resistance.

The solution gives a detailed description of air resistance and

two small, identical boxes that generate 440 Hz

notes

See the step by step solution

Step by Step Solution

Step 1: Description of resistance

Resistance is a measure of opposite current flow in an electrical circuits

Step 2; Description on the frequency, time and period

Provided solutions

The integral beat of frequency

The heard frequency will be

as per the strategic box the frequency difference is ;

Step 3: The integral part becomes

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