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valkas [14]
3 years ago
11

What are optical fibres

Physics
2 answers:
irga5000 [103]3 years ago
8 0
Its thin glass fibers that let light be transmitted through them
denis23 [38]3 years ago
5 0
Optical Fibers is a flexible, transparent fiber made by drawing glass, or plastic to a diameter slightly thicker then that of a human hair.
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For a submarine, identify when it will have the GREATEST buoyant force acting on it. Assume that neither the volume of the subma
lidiya [134]

Answer: a, c, and g

Explanation:

Buoyant Force is an upward force acting on submerged object equal to weight of fluid displaced by the submerged object.

If no part is submerged (V = 0) that is volume. Therefore there is Zero Buoyant Force.

Fully submerged produces greatest buoyant force since greatest amount of fluid was displaced.

Whenever it is fully submerged it will have the greatest buoyant force.

Buoyant Force DOES NOT Depend on Depth

A fully submerged object displaces its volume in fluid

A floating object displaces its weight in fluid.

6 0
3 years ago
A mineral's chemical composition and crystal structure help determine it's ___________.
AnnyKZ [126]

Hiya!

The answer to your question is B.

Physical Properties.

~Hope this helps~

4 0
4 years ago
I'll mark brainliest
irga5000 [103]

Answer:

A) 35 ft

B) 5 ft

C) Net displacement = distance covered by the dog to retrieve the stick - distance covered before the dog starts chewing the stick

Explanation:

A) Total distance covered by the dog = 20 + 15

                                  = 35 ft

B) Since the other distance covered by the dog before chewing the stick, after the retrieval, was in an opposite direction to the initial direction, then;

total displacement of the dog = 20 - 15

                                  = 5 ft

C) Net displacement = distance covered by the dog to retrieve the stick + distance covered before the dog starts chewing the stick

But, displacement involves a specified direction. The distance covered before the dog starts chewing the stick was in an opposite direction to the initial direction.

Thus,

Net displacement = distance covered by the dog to retrieve the stick - distance covered before the dog starts chewing the stick

7 0
3 years ago
If an object's velocity changes from 25 meters per second to
damaskus [11]

Answer:

B

Explanation:

the way to get b you have divion each other

3 0
3 years ago
Read 2 more answers
People travel from all over the world to see more than 30 glaciers at Glacier National Park in Alaska.
Whitepunk [10]
The answer I believe is c
Explanation
During the day when temperatures are higher, the snow melts and water enters the cracks in the rock. When the temperature drops below 0°C the water in the crack freezes and expands by about 9 per cent. This makes the crack larger.
3 0
3 years ago
Read 2 more answers
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