2 years ago

Need some help on this math question.

Mathematics

1 answer:

melamori03 [73]2 years ago

4 0

Answer:

4x cm.

Step-by-step explanation:

Suares have to have all 4 sides equal. The area of the rectangle (2x8) is 16.

16/4 = 4, so the square has sides of 4cm each to equal an are of 16. (4x4=16)

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nydimaria [60]

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A beam of light from a monochromatic laser shines into a piece of glass. The glass has thickness L and index of refraction n=1.5

boyakko [2]

Additional information to complete the question:

How long does it take for a short pulse of light to travel from one end of the glass to the other?

Express your answer in terms of some or all of the variables f and L. Use the numeric value given for n in the introduction.

T = ___________ s

Answer:

$T = \frac{15}{f}$

Step-by-step explanation:

Given:

Thickness og glass = L

Index of refraction n=1.5

Frequency = f

$Wavelength = \frac{L}{10}$

λ(air) $= \frac{L}{10}$

λ(glass) = λ(air) / n

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7 0

2 years ago

Rewrite cot 80° in terms of its cofunction.

zysi [14]

Answer:

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Step-by-step explanation:

tan x = cot (90 - x) so:

cot 80 = cot (90 - 10)

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MariettaO [177]

It's the 3rd answer

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