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4 years ago

What are plane mirrors ?

Physics

1 answer:

forsale [732]4 years ago

3 0

Explanation:

Mirrors consist of reflecting surfaces that reflect light.

Reflection is a phenomenon of light wave (but also of other types of waves) in which a ray of light hits a surface, and then it bounces back into the original medium at a certain angle.

The direction of the reflected ray is determined by the law of reflection:

The incident ray, the reflected ray and the normal to the surface all lie in the same plane
The angle of reflection is equal to the angle of incidence (where both angles are measured between the ray and the normal to the surface)

A plane mirror is a type of mirror consisting of a straight surface. As a result, light incident perpendicular to the surface is reflected back exactly in the opposite direction.

The image formed by a plane mirror is:

- The same size as the object

- Virtual (it is located behind the mirror)

- Laterally inverted

- Upright

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marysya [2.9K]

The final volume of the gas is 3 L

Explanation:

We can solve this problem by applying Boyle's law, which states that:

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Mathematically:

$PV=const.$

where

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The equation can also be rewritten as

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For the sample of helium in this problem, we have:

$P_1 = 300 torr$

$V_1 = 5 L$

$P_2 = 500 torr$

Solving the equation, we can find $V_2$ , the final volume of the gas:

$V_2 = \frac{P_1 V_1}{P_2}=\frac{(300)(5)}{500}=3 L$

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3 years ago

Determine the approximate force (N) used to pull a sled up a 400 m hill using 1900 J of work.

Sergeu [11.5K]

The work done to pull the sled up to the hill is given by
$W=Fd$
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In our problem, the work done is $W=1900 J$ and the distance through which the force is applied is $d=400 m$ , so we can calculate the average force by re-arranging the previous equation and by using these data:
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maxonik [38]

Answer: chemical property

Explanation:

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4 years ago

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<u>Explanation:</u>

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