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3 years ago

12

two children of masses m1 = m2 = 20 kg , ride on the perimeter of a small merry-go- round . the merry -go-round us a disk of mas

s M = 30 kg answer

1 answer:

MrMuchimi3 years ago

3 0

Answer:

c

Explanation:

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4 years ago

When a board with a box on it is slowly tilted to larger and larger angle, common experience shows that the box will at some poi

nydimaria [60]

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Explanation:

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4 years ago

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wave

Firlakuza [10]

Answer:

thinnest soap film is 206.76 nm

Explanation:

Given data

wavelength = 550 nm

index of refraction n = 1.33

to find out

What is the thinnest soap film

solution

we have wavelength λ = 550 nm

that is λ = 550 × $10^{-9}$ m

and n = 1.3

we will find the thickness of soap film as given by formula that is

thickness = λ/2n

thickness = 550 × $10^{-9}$ / 2(1.33)

thickness = 206.76 × $10^{-9}$ m

thinnest soap film is 206.76 nm

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3 years ago

What are the basic si units for the speed of light?.

DanielleElmas [232]

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2 years ago

To ancient peoples, why were planets special?

coldgirl [10]

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Planets were like gods.

Explanation:

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