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3 years ago

Please help me with this geometry homework

Mathematics

2 answers:

Alisiya [41]3 years ago

6 0

The answer is 100% 18

denpristay [2]3 years ago

4 0

Answer:

Step-by-step explanation:

We know that line FH total length is 49. We also know that the length of line GH is 31.

To find FG, all we need to do is subtract 49-31 to find the length of FG.

Line FG total length is 18.

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The index of refraction of quartz is anisotropic. Suppose that visible light is passing from one grain to another of different c

Anestetic [448]

Answer:

The reflectivity at the boundary of the two grains is $2.9$ × ${10}^{-3}$

Step-by-step explanation:

Given :

Refractive index of one grains ( $n_{1}$ ) = 1.553

Refractive index of second grains ( $n_{2}$ ) = 1.544

According to the fresnel equation,

∴ general equation of refraction ( reflectivity ) $r = \frac{ n_{1} cos\alpha _{i} - n_{2}cos_{t} }{ n_{1} cos\alpha _{i} + n_{2}cos_{t} }$

where $cos\alpha _{i}$ = incident angle, $cos\alpha _{t}$ = transmitted angle

but for normal incidence $\alpha = 0$ °

so our equation become,

⇒ $r = \frac{n_{1} - n_{2} }{n_{1} + n_{2}}$

$r = \frac{1.553 - 1.544}{1.553 + 1.544}$

$r = \frac{0.009}{3.097}$

$r = 2.9$ × $10^{-3}$

Therefor reflectivity at the boundary is given by $r = 2.9$ × $10^{-3}$ .

3 0

3 years ago

Help please ^^ I am confused

Alika [10]

Answer:

180

Step-by-step explanation:

4 x 28 + 64 = 176 round up to 180

5 0

2 years ago

5 stars and a thank you

anzhelika [568]

Answer:

Step-by-step explanation:

4 0

3 years ago

What is the magnitude of 5-3i

VikaD [51]

Hi the answer for your question is 34

5 0

2 years ago

Use the strategy to simplify 4\sqrt(576)<br> Write the prime factorization of the radicand.

Ronch [10]

<h3>Answer: 96</h3>

===================================================

Work Shown:

$4\sqrt{576}\\\\4\sqrt{2*2*2*2*2*2*3*3}\\\\4\sqrt{(2*2)*(2*2)*(2*2)*(3*3)}\\\\4\sqrt{(2)^2*(2)^2*(2)^2*(3)^2}\\\\4\sqrt{(2*2*2*3)^2}\\\\4\sqrt{24^2}\\\\4*24\\\\96\\\\$

6 0

2 years ago

Read 2 more answers