The absolute refractive index is equal to the speed of light of the wave in air divided by the speed of light in the second medium. This means that it is equal to 3 x10^8 / 1.71 x10^8. This means the answer is 1.75

8 0

3 years ago

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A snail is traveling from garden a to garden b which are 2 meters apart. It takes 4 hours for the snail to make it to garden b.

lys-0071 [83]

The snail was going at 0.5

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3 years ago

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For a body falling freely from rest (disregarding air resistance), the distance the body falls varies directly as the square o

My name is Ann [436]

Answer:

The distance is 199.98 ft.

Explanation:

Given that,

Distance = 512 feet

Time = 88 sec

The distance the body falls varies directly as the square of the time.

$s\propto t^2$

$s=kt^2$

We need to calculate the value of constant

Put the value into the formula

$512=k\times(88)^2$

$k=\dfrac{512}{(88)^2}$

$k=0.06611$

We need to calculate the distance

Using formula of distance again

$s=kt^2$

Put the value into the formula

$s=0.06611\times(55)^2$

$s=199.98\ ft$

Hence, The distance is 199.98 ft.

4 0

3 years ago