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jek_recluse [69]
3 years ago
12

The perceived frequency of a sound wave.

Physics
1 answer:
antoniya [11.8K]3 years ago
7 0

<em> Frequency is perceived by humans as pitch; The sound intensity is the amplitude; Humans can only hear a specific range of sound, usually from 20 Hz to 20,000 Hz; The factors that go into a sound are its intensity, frequency and overtones (which are like interference, or background noises).</em>

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Christina drives his moped 7 kilometers North. She stops for lunch and then drives 5 kilometers East. What distance did she cove
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Answer:

She covers the distance is 12 km.

The magnitude of displacement is 8.6 km.

The direction of her displacement is north east.

Explanation:

Given that,

Christina drives his moped 7 kilometers North and stop for lunch and then drive 5 km east.

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We need to calculate the magnitude of displacement

Using formula of displacement

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Hence, She covers the distance is 12 km.

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The direction of her displacement is north east.

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