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katrin2010 [14]
2 years ago
8

One of these cars is black and the other is red (really). They are illuminated by sodium lamps which have dominantly yellow ligh

t. Why do the cars both appear to be dark in color
Physics
1 answer:
nekit [7.7K]2 years ago
8 0

The two cars illuminated by sodium lamps appear black because the red and black colours are absorbed and no colour is reflected.

<h3>What is reflection of light?</h3>

Reflection of light is the ability of light rays to bounce back off a surface when they are incident on that surface

The ability of light to be reflected gives rise to changes in the colour of objects

When light is incident on a surface, the colour that is reflected gives the colour of that object.

Therefore, when two cars of red and black colur are illuminated by sodium lamps, they appear black because the red and black colours are absorbed and no colour is reflected.

Learn more about reflection of light at: brainly.com/question/1191238

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Answer:

In order to make this force twice as strong, F' = 2 F, the distance would have to be changed to half i.e. r' = r/2.

Explanation :

The electric force between two point charges is directly proportional to the product of charges and inversely proportional to the square of the distance between charges. It is given by :

F=\dfrac{kq_1q_2}{r^2}

r is the separation between charges  

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If F'= 2F

r'=\dfrac{1}{\sqrt{2F} }

In order to make this force twice as strong, F' = 2 F, the distance would have to be changed to half i.e. r'=\dfrac{1}{\sqrt{2F} }. Hence, this is the required solution.                                                                                    

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Which element can combine with chlorine to make the best conductor of electricity when in the liquid form?
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Lithium is the <span>element that can combine with chlorine to make the best conductor of electricity when in the liquid form because </span><span>it has a much lower electronegativity value.</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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