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Sunny_sXe [5.5K]
4 years ago
8

The ___________ effect is the change of pitch heard when the source of the sound approaches and then moves away from a stationar

y person.
Physics
2 answers:
mina [271]4 years ago
6 0
The answer is the Doppler Effect
maxonik [38]4 years ago
4 0

Answer: The correct answer is Doppler effect.

Explanation:

When there is relative motion between the source and listener then there is an apparent change in the frequency of the sound wave. This phenomenon is called the Doppler effect.

Pitch depends on the frequency.

If the listener and the source are approaching each other then the frequency increases.

If the listener and the source are moving away from each other then the frequency decreases.

Therefore, the Doppler effect is the change of pitch heard when the source of the sound approaches and then moves away from a stationary person.

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Suppose that it takes a simple pendulum 1.2 seconds to swing from its leftmost point to its rightmost point. what is the period
Mariana [72]

The time period of the simple pendulum is 2.4 seconds.

Given the data in the question;

  • Time taken to swing from leftmost point to rightmost point; t = 1.2s
  • Period of the pendulum; T = \ ?

<h3>What is Period?</h3>

Period is the time needed for a complete cycle of vibration to pass a given point.

Period of a pendulum is the of time needed for it to complete one full back-and-forth motion. It is the time required to for the pendulum to swing from leftmost point to rightmost point and back to leftmost point.

Now, if it took the pendulum 1.2s to swing from leftmost point to rightmost point, it will also take the pendulum 1.2s to swing back to its original position( leftmost point )

Hence,

T = time taken to swing from leftmost to rightmost + time taken to swing from rightmost point to leftmost point.

T = 1.2s + 1.2s\\\\T = 2.4s

Therefore, the time period of the simple pendulum is 2.4 seconds.

Learn more about Time Period: brainly.com/question/27135322

7 0
3 years ago
A ________ is a rigid layer that surrounds a plant cell, providing structural support. Fill in the blank.
Mamont248 [21]
It's is a cell wall. A cell wall surround plant cells and it is a nonliving rigid layer that protects the cell from the outside.
4 0
3 years ago
How do scientists construct models of atoms and molecules?
9966 [12]
Mr. Roentgen's x-rays allowed scientists to measure the size of the atom. The x-rays were small enough to discern the atomic clouds. This was done by scattering x-rays from atoms and measuring their size just as Rutherford had done earlier by hitting atoms with other nuclei starting with alpha particles.
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3 years ago
Increased force will increase acceleration true or false.
zalisa [80]
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8 0
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ella [17]

Answer: (B). Solar cell B, because it generates more power.

Explanation:

Given that,

For solar cell A

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Power of cell A

Power = Energy/Time

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Time = 5 minutes = 300 sec

Power of cell B

Power = Energy/Time

P = \dfrac{200}{300}\ watt

P = 0.66\ Watt

Hence, Solar cell B, because it generates more power.

3 0
3 years ago
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