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AleksandrR [38]

3 years ago

12

An optical fiber is made of clear plastic (n = 1.50). Light travels through the fiber at angles ranging from 40° to 55°. What is

the measurement of the critical angle of this fiber?

1 answer:

Arada [10]3 years ago

6 0

1/sinc = 1.50
sinc =1/1.5
critical angle = sininverse(1/1.5) = 41.8

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Joe and Max shake hands and say goodbye. Joe walks east 0.50 km to a coffee shop, and Max flags a cab and rides north 3.45 km to

timama [110]

Answer:

3.486 km

Explanation:

Suppose Joe and Max's directions are perfectly perpendicular (east vs north). We can calculate their distance at the destinations using Pythagorean theorem:

$s = \sqrt{J^2 + M^2}$

where J = 0.5 km and M= 3.45 km are the distances between Joe and Max to their original parting point, respectively. s is the distance between them.

$s = \sqrt{0.5^2 + 3.45^2} = \sqrt{12.1525} = 3.486 km$

8 0

3 years ago

When heat moves from the ocean to the surrounding air, which is this an example of?

Blizzard [7]

B) The transfer of energy from the hydrosphere to the atmosphere

This is because oceans are part of the hydrosphere. As the air warms it flows up into the atmosphere.

Hope this helps!

6 0

2 years ago

You push on a box with 100 N of force, causing it to accelerate at 5 m/s?.

Xelga [282]

<h3><u>Given</u><u>:</u><u>-</u></h3>

Force,F = 100 N

Acceleration,a = 5 m/s²

<h3><u>To</u><u> </u><u>be</u><u> </u><u>calculated:-</u><u> </u></h3>

Calculate the mass of the box .

<h3><u>Formula</u><u> </u><u>used:-</u><u> </u></h3>

$\bf \: Force = Mass \times Acceleration$

<h3><u>Solution:-</u><u> </u></h3>

$\sf \: Force = Mass × Acceleration$

★ Substituting the values in the above formula,we get:

$\sf \implies \: 100 = Mass \times 5$

$\sf \implies \: Mass = \cancel\dfrac{100}{5}$

$\sf \implies \: Mass = 20 \: kg$

4 0

3 years ago

Read 2 more answers

What makes up all type of matter in living and nonliving things in an ecosystem?

Zarrin [17]

Answer:

Inorganic matter

Explanation:

These are things like air, water, rocks, soil and metals.

I hope my answer helped you pls mark me brainliest.

5 0

3 years ago

the velocity of car incrases from 30kmph in 5m. assuming the acceleration to be uniform calculate the distance travelled

MrRissso [65]

We have,
speed(v)=35kmph=9.72 m/s (approx)
time(t)=5mins

by using
v=s/t

9.72=s/5
9.72*5=s
48.6m=s
or
s= 48.6 metres

Hope it helps
Don't feel shy and say thx

5 0

3 years ago