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Sav [38]
3 years ago
6

PLEASE HELP!!

Physics
2 answers:
malfutka [58]3 years ago
8 0

Answer:

Please see the explanation

Explanation:

As we know that standing waves have nodes and anti nodes which is produced by repeated interference of two waves of same frequency in opposite direction in the same medium. In this case when we have a rope attached to a point on a wall, we move the rope in up and down direction we will create waves.

The wave will go up to the wall and then reflect back and thus create an opposite wave. And as we can create a standing wave.

Arisa [49]3 years ago
3 0

Answer

standing waves are created when you have a rope attached to a point By moving your hand up and down we can create waves, and as we know that our rope is attached to a point on a wall, which means it has boundary. The waves will reflect back and interface with new waves and this is how standing waves are created.


hope this will help.

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Answer:

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Explanation:

We need to use the thermal expansion equation:

\Delta L=\alpha L_{0}\Delta T

Where:

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So, we have:

L_{f}-L_{0}=\alpha L_{0}(T_{f}-T_{0})

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L_{f}=0.115+(12.5*10^{-6})(0.115)(1221-22)

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I hope it helps you!

7 0
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