3 years ago

What happened to the speed of light if it travels from air into glass?

Physics

1 answer:

vovikov84 [41]3 years ago

8 0

Answer:

it slows down

Explanation:

the answer

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In a crash test, a truck with mass 2100 kg traveling at 22 m/s smashes head-on into a concrete wall without rebounding. The fron

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Answer:

a) 11 m/s

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Explanation:

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m = 2100 kg

vi = 22 ..... m/s before collision

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Part a

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Part b

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3 years ago

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The quantity of charge Q in coulombs (C) that has passed through a point in a wire up to time t (measured in seconds) is given b

Mnenie [13.5K]

Explanation:

The quantity of charge Q in coulombs (C) that has passed through a point in a wire up to time t (measured in seconds) is given by :

$Q=t^3-2t^2+4t+4$

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At t = 1 s,

Current,

$I=3(1)^2-4(1)+4\\\\I=3\ A$

So, the current at t = 1 s is 3 A.

For lowest current,

$\dfrac{dI}{dt}=0\\\\\dfrac{d(3t^2-4t+4)}{dt}=0\\\\6t-4=0\\\\t=0.67\ s$

Hence, this is the required solution.

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The term _____ of energy means that the total amount of energy at the start and end of an energy transformation must be the same

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What happened to the speed of light if it travels from air into glass?￼

What happened to the speed of light if it travels from air into glass?