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2 years ago

Table B:Convection (Cold Water) Time (minutes : seconds) Food Coloring Movement 0:30 1:00 1:30 2:00 2:30 3:00

Physics

1 answer:

wlad13 [49]2 years ago

6 0

Answer: Did you get the answers to any of this report?

Explanation:

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An oil layer that is 5.0 cm thick is spread smoothly and evenly over the surface of water on a windless day. A light ray from th

marshall27 [118]

Answer:

The angle of refraction in water 32.12°.

Explanation:

Given that,

Thickness = 5.0 cm

Index of refraction for oil = 1.15

Index of refraction for water = 1.33

Angle = 45°

We need to calculate the angle of refraction

When the ray of light enters from air to oil

Using formula of refraction

$n_{a}\sin\theta_{a}=n_{o}\sin\theta_{o}$

Where, $n_{a}$ = refractive index of air

$n_{0}$ = refractive index of oil

Put the value into the formula

$1\times\sin45=1.15\sin\theta_{o}$

$\sin\theta_{o}=\dfrac{1}{\sqrt{2}\times1.15}$

$\sin\theta_{o}=0.6148$

$\theta_{o}=sin^{-1}0.6149$

$\theta_{o}=37.94^{\circ}$

When the ray of light enters from oil to water

Using formula of refraction

$n_{0}\sin\theta_{0}=n_{w}\sin\theta_{w}$

Where, $n_{w}$ = refractive index of water

$1.15\times\sin37.94^{\circ}=1.33\sin\theta_{w}$

$\sin\theta_{w}=\dfrac{1.15\sin37.94^{\circ}}{1.33}$

$\theta_{w}=\sin^{-1}0.53163$

$\theta_{w}=32.12^{\circ}$

Hence, The angle of refraction in water 32.12°.

7 0

3 years ago

Why do earthquakes and volcanoes occur along continent and ocean boundaries?

jeyben [28]

Earths plates move, creating them to rub together to create earthquakes, and volcanoes occur because magma melts rocks and the pressure is so intense it causes the lava to leak out of the top of a mountain

4 0

3 years ago

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4: Which of the following is true of an object in a circular motion at a constant speed?

Andre45 [30]

Yes it could. And IT IS !

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3 years ago

Distances (d)=144m<br> Time (t)=12s<br><br><br> What is the speed?

Sunny_sXe [5.5K]

Speed=distanse/time
144/12=12
ans is 12m/s

5 0

3 years ago

A 1000 kg box is being pushed with a force of 3500 N. What acceleration is the

WARRIOR [948]

Net Force = mass x acceleration
3500=1,000a
So a= 3500/1000
a=35/10
a=3.5 m/s^2

4 0

3 years ago