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weqwewe [10]
3 years ago
13

Why is friction between moving parts of machines undesirable?

Physics
1 answer:
frozen [14]3 years ago
3 0
If there is a lot of friction in a machine, the parts get easily worn out, and gets broken.
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Explanation's of E=MC²
natita [175]

Answer:

E means energy

M= Mass

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4 0
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Match the following vocabulary words with their definitions:
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Correct matching:


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Tapping the surface of a pan of water generates 17.5 waves per second. If the wavelength of each wave is 45 cm, what is the spee
ElenaW [278]

Answer:

Speed of the wave is 7.87 m/s.

Explanation:

It is given that, tapping the surface of a pan of water generates 17.5 waves per second.

We know that the number of waves per second is called the frequency of a wave.

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v=f\lambda

v=17.5\times 0.45

v = 7.87 m/s

So, the speed of the wave is 7.87 m/s. Hence, this is the required solution.

5 0
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Snezhnost [94]
The disadvantages of shared decision making are:
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What do you think happens to the temperature when water changes to gas?
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it gets hot and more hot until it turns to gas

Explanation:

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