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Katarina [22]
2 years ago
12

Which refers to the change of pitch heard when the source of the sound approaches and then moves away from a stationary person?

Doppler effect volume resonance effect vibration
Physics
2 answers:
babunello [35]2 years ago
5 0
<h2><em>The Doppler effect is a change in the frequency of sound waves that occurs when the source of the sound waves is moving relative to a stationary listener. As the source of sound waves approaches a listener, the sound waves get closer together, increasing their frequency and the pitch of the sound.</em></h2><h2><em>HOP</em>E IT HELPS </h2><h2>THANK YOU </h2>
goldfiish [28.3K]2 years ago
4 0

Answer: Doppler effect

Explanation:

I hoped I helped

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A solid cylinder is released from the top of an inclined plane of height 0.81 m. From what height, in meters, on the incline sho
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Answer:

same 0.81m

Explanation:

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the above relation suggests that the speed at the bottom is only depending on the height it is released from not on the shape, mass or radius.

so at the bottom

put h = 0.81m

9.81 * 0.81 * 2 = v^2

v=3.99 m/s

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(1 pt) A bucket of water of mass 20 kg is pulled at constant velocity up to a platform 35 meters above the ground. This takes 14
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Answer:

w = 5832.372 Joules

Explanation:

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speed = distance/ time = 35/14 = 2.5 m/min

The bucket's height, y = speed * time = 2.5t meters

6 kg of water drips out of the bucket throughout the 14 minutes

The rate at which the water drips drips out = (6/14) = 0.4286 kg/min

Mass of water that drips out in time, t = 0.4286t kg

The mass of water remaining = (20 - 0.4286t) kg

Change in Workdone, Δw = mgΔy

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Δw = mg *  2.5 Δt

dw =  (20 - 0.4286t)g2.5 dt

integrating both sides

dw = (50g - 1.07gt)dt

w = \int\limits^a_b {(50g-1.07gt)} \, dx where b = 0, a = 14

w = 50gt - 1.07g(t²)/2      g = 9.8 m/s²

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3 years ago
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Answer:

True

Explanation:

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Answer:

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