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anzhelika [568]
3 years ago
8

PLEASE HELP!!!!! In which medium does sound travel fastest.

Physics
2 answers:
Jobisdone [24]3 years ago
7 0

Answer:

D. Cast iron

Explanation:

Sound requires a medium to travel. More specifically, it relies on medium particles to vibrate, touching each other and propagating the sound through the medium. Knowing that then, it should follow that solids are the best conductors of sound because the particles in a solid are packed tightly together which vibrations travel faster unlike in a gas where it takes a lot for particles to touch since they are so far apart from each other.

So cast iron is the correct answer.

Art [367]3 years ago
3 0
<span>Sound travels fastest through solids, slower through liquids and slowest through gases.

Answer: Cast Iron, D.
</span>
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A thermal reservoir can be characterized as a thermal body that is large enough that when energy is dumped into it or taken out of it, the temperature of the reservoir does not vary considerably.

<h3>What is a thermal reservoir?</h3>

A thermal reservoir is as described, a body large enough to have a very high heat capacity. This heat capacity refers to the amount of energy needed to raise the temperature by one degree.

Therefore, we can confirm that bodies with a large enough heat capacity will be considered thermal reservoirs. This is due to the fact that when energy is dumped into it or taken out of it, the temperature of the reservoir <u>does not vary considerably</u>.

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3 years ago
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4 years ago
An object is placed a distance of 20 cm from a convex mirror of radius 40 cm. How far (in cm) is the image from the mirror?
Leona [35]

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Be sure you understand two optics principles: the focal length of a convex mirror is NEGATIVE (by convention) and R / 2 = f.

Find f, take its negative, plug in the mirror equation and obtain Di = - 24 cm. This indicates that the image is virtual (as it should be in a convex mirror), is erect (as all virtual images are), is diminished (as it should be) and INSIDE the mirror as it should be.

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4 years ago
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svp [43]

Answer:

example two

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orbit each other once a second or so. But now lets try to put the earth and moon one half mile away from each other, they orbit each other much much slower then the two black holes, its becuase the gigantic mass of the black holes overwalms the closser distance between earth and the moon

Have a great day,

enjoy life.

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Which kind of knowledge to the people in the forest have ?​
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