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Furkat [3]
3 years ago
7

What is the correct definition of a compression?

Physics
2 answers:
olga_2 [115]3 years ago
7 0

Answer:

<u>Compression - "</u>Compression is a process in which the actual space covered by any sort of entity is reduced and the values of the given parameters are lowered."

Explanation:

<u>Definition with respect to Stress and strain-</u> "The change in actual length,L to a new length,ΔL due to applied stress is called as compression".

<u>Definition with respect to longitudinal wave-</u> "The region of the wave where the particles present are more close to each other is called as compression".

ASHA 777 [7]3 years ago
5 0

Answer:

The answer that I found is.....

<h3><u><em>Compression. A compression is a region in a longitudinal wave where the particles are closest together. Rarefaction. A rarefaction is a region in a longitudinal wave where the particles are furthest apart.</em></u></h3>

<u><em /></u>

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SOMEBODY PLEASE HELP!! 20 PTS!!!
aliya0001 [1]

Answer:

1. Reflection

2. travel from one medium to another

3. Same waves to travel in opposite direction.  

Explanation:

1. When a wave strikes a solid barrier, it bounces back in the same medium. This wave behavior of bouncing back is known as reflection. Its like a basketball hitting a backboard. The ball bounces back at the same angle as it was incident. ∠i = ∠r

2. For refraction to occur in a wave, the wave must travel from one medium to another. When light travels from through mediums of different optical densities, it bends. The wave bends away normal when it enters from denser medium to rarer medium. The wave bends towards the normal when it enters from rarer to denser medium. The angle of refraction and angle of incidence are related by Snell's law.

\frac{sin(i)}{sin(r)} = \frac{\mu_2}{\mu_1}

3. The formation of standing wave requires two same waves to travel in the opposite direction and interfere. The incident wave and reflected wave when interfere, form standing waves. There waves are also resonances or harmonics. A standing wave oscillates at one place and does not transfers any energy.

3 0
3 years ago
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When you throw a pebble straight up with initial speed V, it reaches a maximum height H with no air resistance. At what speed sh
aev [14]

Answer:

Explanation:

Given

Initial speed is u=V

Maximum height of Pebble is H

Deriving maximum height of Pebble and considering motion in vertical direction

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u=initial velocity

a=acceleration

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H=\frac{V^2}{2g}

i.e. maximum height is dependent on square of initial velocity

for twice the height

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on comparing

V'=\sqrt{2}V

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A-Light from the Sun reflects off the Moon as it orbits Earth

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I think it's A but I'm not sure

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