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ohaa [14]
3 years ago
6

Why do you see objects when you shine a flashlight in a dark room?​

Physics
1 answer:
anzhelika [568]3 years ago
8 0

Explanation:

We see objects in a dark room due to the emission of light photons which are sensitive to our eyes.

Darkness is simply a terminology used to describe the absence of light. Visible light to human is a component of the electromagnetic spectrum. Our eyes have receptors that picks the photons which light releases.

The particles of light are called photons.

  • When a torch is shines. It produces light due to emission of light by excitation of the metal in the bulb.
  • The light is in form of photons that spreads and travels in all direction in a room.
  • When they impinge on other bodies, they cause them to excite and release their own photons
  • Photons from the different parts helps to depict an object as it is.
  • The photo-receptors in our eyes picks up the photon and interprets it in our visual faculty.

learn more:

light waves brainly.com/question/8032392

#learnwithBrainly

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A pendulum is set in motion and time. The time measured for 20 complete swings is 308.
laiz [17]

Answer:

<em><u>solution</u></em>

<em>3</em><em>0</em><em>8</em><em>=</em><em>2</em><em>0</em><em> </em><em>swings</em><em> </em>

<em> </em><em>?</em><em>:</em><em>:</em><em>:</em><em> </em><em>=</em><em>1</em>

<em>(</em><em> </em><em>3</em><em>0</em><em>8</em><em>×</em><em>1</em><em>)</em><em>÷</em><em>2</em><em>0</em>

<em>3</em><em>0</em><em>8</em><em>÷</em><em>2</em><em>0</em>

<em>1</em><em>5</em><em>4</em><em>÷</em><em>1</em><em>0</em>

<em>=</em><em>1</em><em>5</em><em>.</em><em>4</em>

<em>=</em>15.4

6 0
3 years ago
One observer stand on a train moving at a constant speed, and one observer stands at rest on the ground. The person on the train
ANTONII [103]

Answer:

b) Equal to c

Explanation:

According to relativity, the speed of light in free space is constant in all inertial reference frame.

3 0
2 years ago
Select all of the answers that can serve as a meaning for sexuality. (more than one answer may be selected)
Aneli [31]
Gender and self esteem is the answer
5 0
3 years ago
Jessica has a mass of 55kg she sleds down a hill that has a slope of 32 degrees. what is the component of her weight that is alo
Arturiano [62]

Answer:

W = 285.62 N

Explanation:

It is given that,

Mass of Jessica is 55 kg

Slope of the hill is 32 degrees

We need to find the component of her weight that is along her direction of motion.

The component along her direction of motion is shown in attached figure. It means

W_y=mg\sin\theta\\\\W_y=55\times 9.8\times \sin(32)\\\\W_y=285.62\ N

So, the component of her weight that is along her direction of motion is 285.62 N.

7 0
3 years ago
Read 2 more answers
In a game of pool, a cue ball rolls without slipping toward the stationary eight ball with a momentum of 0.23 kg. After the two
IrinaVladis [17]

This question involves the concepts of the law of conservation of momentum.

The magnitude of the final momentum of the eight ball is "0.22 N.s".

According to the law of conservation of momentum:

P_{i1}+P_{i2}=P_{f1}+P_{f2}

where,

P_{i1} = initial momentum of the cue ball = 0.23 N.s

P_{i2} = initial momentum of the eight ball = 0 N.s (since ball is initially at rest)

P_{f1} = final momentum of the cue ball = 0.01 N.s

P_{f2} = final momentum of the eight ball = ?

Therefore,

0.23\ N.s + 0\N.s = 0.01\ N.s+P_{f2}\\\\P_{f2} = 0.22\ N.s

Learn more about the law of conservation of momentum here:

brainly.com/question/1113396?referrer=searchResults

3 0
2 years ago
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