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Mekhanik [1.2K]
1 year ago
14

You are looking at yourself in a plane mirror, a distance of 3 meters from the mirror. your brain interprets what you are seeing

in the mirror as being a person standing ______ meters from you.
Physics
1 answer:
AleksandrR [38]1 year ago
8 0

You are looking at yourself in a plane mirror, a distance of 3 meters from the mirror. your brain interprets what you are seeing in the mirror as being a person standing 6 meters from you.

<h3>Calculation</h3>

The plane mirror shows an exact replica of the real world. that means the distance of you from the mirror is the same distance as your reflection form the mirror at the opposite side of the mirror.

Thus, distance of image from the plane mirror is same as the distance of object (person) from the plane mirror but the image is formed behind the mirror.

Thereby we have v=u=3 m

Thus, distance between image and the person

is d = v + u = 3 + 3 = 6 m

Thus, the person is 6 meters away from the image.

To know more such mirror problems, visit:

brainly.com/question/14687229

#SPJ4

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True or false : In crystalline solids the particles are not arranged in a regular pattern
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If you have 80g of a radioactive substance whose half life is 2 days, how long will it take for the substance to decay to the po
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Answer:

6 days.

Explanation:

From radioactivity, The expression for half life is given as,

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Where R = original mass of the radioactive substance, R' = Remaining mass of the radioactive substance after decay, a = Total time taken to decay, b = half life.

Given: R = 80 g, R' = 10 g, b = 2 days.

Substitute into equation 1

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Equating the base and solving for a

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5 0
3 years ago
If a dog is mass iS 14.3 kg what is it’s weight on earth
BigorU [14]

Answer:

Weight of the dog on surface of earth is 140.14 Newton.

Given:

mass of the dog = 14.3 kg

To find:

Weight of the dog = ?

Formula used:

Weight of the dog is given by,

W = mg

Where, W = weight of the dog

m = mass of the dog

g = acceleration due to gravity

Solution:

Weight of the dog is given by,

W = mg

Where, W = weight of the dog

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g = acceleration due to gravity

W = 14.3 × 9.8

W = 140.14 Newton

Weight of the dog on surface of earth is 140.14 Newton.


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Answer:

As the particles move further away from their normal position (up towards the wave crest or down towards the trough), they slow down.

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