3 years ago

What do you think is the main idea?

Physics

1 answer:

Tanzania [10]3 years ago

3 0

I think the main idea is that the middle planets have a solid inner core and that they all could have life on them

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As light slows down, it bends or refracts. The index of refraction helps predict the amount of bending. How are the speed of lig

Eduardwww [97]

When light changes the medium it travels through it also changes speed. The speed in medium is given by formula:
$v_{medium} = \frac{c}{ n_{medium} }$

Rearranging formual gives:
$n_{medium} = \frac{c}{ v_{medium} }$

From this formula we can make conclusion that index of refraction is inversely proportional to speed of light in medium. This means that greater speed gives smaller index of refraction.

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Which of the following examples shows the greatest amount of biodiversity

Anna [14]

Answer:

A lake full of a larger variety of fish, frogs, and birds

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3 years ago

Carole is very tired and makes coffee. why would newton say that she must use her hand to put up the cup

Marat540 [252]

<span>newton say that she must use her hand to put up the cup because the work is equal to force times it distance, that is in the same direction of the force applied. if carole used her hand to put up the cup, then he is not applying any work because the displacement is not in the same direction of the force</span>

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Two waves are superposed. one wave has an amplitude of 5 cm, and other has an amplitude of 4 cm. What is the resultant amplitude

Vsevolod [243]

If both waves have the same wavelength, then the amplitude of
their sum could be anything between 1 cm and 9 cm, depending
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If the waves have different wavelengths, then the resultant is a beat
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3 years ago

A mass weight of 120N is hung from two strings. what is the tension?

kramer

The weight should be shared between the two string equally. Therefore, tension in each string, T is;

T = 120 N/2 = 60 N

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4 years ago

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