3 years ago

Explain what it's meant by refraction of light

1 answer:

ozzi3 years ago

5 0

The definition of refraction is the bending of light as it passes from one substance to another. I hope this helps you, have a great day!

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What is the slope of the line?

coldgirl [10]

(30, 5)
(10, 1)

change of y / change of x
= (30 - 10) / (5 - 1)
= 20 /4
= 5

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3 years ago

I drop an egg from a certain distance and it takes the egg 3.74 seconds to reach the ground. How high up was the egg?

Ulleksa [173]

Answer:

B. 68.6m

Explanation:

Free Fall Motion

When a body is left to move in the air with no friction, the motion is ruled only by the force of gravity. The vertical distance a body travels in the air after a time t is .

$\displaystyle y=\frac{gt^2}{2}$

We know the egg takes 3.74 seconds to reach the ground. The height it was launched from is

$\displaystyle y=\frac{(9.8)(3.474)^2}{2}$

$\displaystyle y=68.54\ m$

The closest correct option is

B. 68.6m

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3 years ago

A car moves around a circular track at a constant rate. What must change?

suter [353]

B. only its velocity should change

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2 years ago

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kkurt [141]

Answer:

There are 6.87 x 1023 atoms in 1.14 mol SO3, or sulfur trioxide :

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3 years ago

In a wheel and axle, the radius of the wheel is 20 cm and the radius of the axle is 4 cm. What is the mechanical advantage?

aliya0001 [1]

The answer is 5. To find the advantage you just divide 20 by 4.

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3 years ago

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