3 years ago

What is the refraction index of a medium?

Physics

1 answer:

Sati [7]3 years ago

6 0

<span>the ratio of the velocity of light in the medium over the velocity of light in a vacuum</span>

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The orbit of mars is never far from the ecliptic. why?

LekaFEV [45]

The plane of the ecliptic is an imaginary plane that passes from the Sun through the Earth. So Earth has an inclination of zero degrees from the plane.

All planets of our Solar System do not lie in this imaginary plane.

Mars is less than 2 degrees off which is why it appears to be centralized. Jupiter is also less than 2 degrees off. But some such as the Plutoid or Dwarf Planet Pluto can be off as much as 17 degrees.

Hope this gives you a bit understanding!

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3 years ago

A man performed 500 J of work moving a couch in his living room. It took him 10 seconds to move the couch. What was his power?

trasher [3.6K]

Answer:

A. 50 W

Explanation:

Power = work / time

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3 years ago

An object that has linear kinetic energy must be __________.

stich3 [128]

Answer:

option B

Explanation:

An Object that has linear Kinetic energy so, it must be moving.

Expression of Kinetic energy

$K.E. = \dfrac{1}{2}mv^2$

From the expression above we can clearly see that Kinetic energy is directly proportional to velocity of the object.

If the body has kinetic energy so, it must be moving with certain velocity.

Hence, the correct answer is option B

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3 years ago

Im Giving 50 Points!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

nlexa [21]

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a rock thrown horizontally at 20m/s from the top of a building 63m high. How far from the base of the building does the rock lan

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1,260

this might be it

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3 years ago