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elena-s [515]
3 years ago
12

A train sounds its whistle at a constant frequency as it passes by the platform. Compared to the sound emitted by the whistle, t

he sound that people on the platform hear as the train moves away has a frequency that is ...
-higher
-the same
-lower
-exactly half
Physics
1 answer:
Fittoniya [83]3 years ago
4 0

Answer: Higher.

Explanation: The doppler effect essentially. "The Doppler effect can be described as the effect produced by a moving source of waves in which there is an apparent upward shift in frequency for observers towards whom the source is approaching and an apparent downward shift in frequency for observers from whom the source is receding."

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two porters are available to carry a long timber wood.out of them one is weak.how to do you make less load to the weak one? writ
marshall27 [118]

Answer:

Please find the answer in the explanation.

Explanation:

Given that two porters are available to carry a long timber wood.out of them one is weak. how do you make less load to the weak one?

We can make the weak one to carry less load through two different ways or means.

First, if we can locate the centre of gravity and centre of mass of the long timbre wood, the week one can carry the other end away from the center of gravity and centre of mass.

Second, the strong porter can carry the long timbre wood almost to the fulcrum and allow the weak one to support at the other end. By doing this, the weak one will only carry light portion of the load.

4 0
3 years ago
HELP ASAP PLZ
attashe74 [19]

Answer:

Increases

Explanation:

Because acceleration goes higher

5 0
4 years ago
Question 7(Multiple Choice Worth 4 points)
Nimfa-mama [501]
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The position of a circuit breaker (CB) are .............
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I hope that this answer helps you
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