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umka2103 [35]
3 years ago
14

Would a Black T shirt or a White T shirt be hotter on a summer day?

Physics
2 answers:
tamaranim1 [39]3 years ago
7 0

Answer:

a black T-shirt would be hotter

Explanation:

dark colors absorb heat. light colors reflect it.

Zepler [3.9K]3 years ago
7 0

Answer:

The black shirt would be hotter.

Explanation:

Most of us have already felt regret for leaving the house wearing black clothes on a hot day and with the sun showing. This has to do with the fact that black or very dark colored objects are absorbent, while light clothes and objects are reflective.

Going back to physics classes, we came to the idea that the color that we see in an object is related to the wavelengths of light reflected in that object, right?

Black objects, like the shirt you decided to wear, are black in color because they absorb all wavelengths in white light, but do not reflect any of them.

Then, throughout the day, you walk, run so as not to miss the bus, go out to lunch, and the shirt ends up absorbing all the light that comes from the Sun. As this light does not simply disappear, it is converted into other forms of energy - the heat enters there, which is then emitted. Therefore, the darker a garment, the more heat it will emit, and this is because it is a beautiful absorber of light.

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Answer:

Height, mass, acceleration.

Explanation:

I hope it helps u dear! ^_^

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1 year ago
Why is it important to know how fast a roller coaster travels at certain points on the track?
jolli1 [7]

It's important because you have to know when to make it go faster or else you might not be able to go upside down or in a circle
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3 years ago
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A 2kg book is held against a vertical wall. The coefficient of friction is 0.45. What is the minimum force that must be applied
Vika [28.1K]

We have that for the Question "A 2kg book is held against a vertical wall. The <em>coefficient </em>of friction is 0.45. What is the minimum force that must be applied on the <em>book</em>, perpendicular to the wall, to prevent the book from slipping down the wal" it can be said that  the minimum force that must be applied on the <em>book is</em>

  • F=44N

From the question we are told

A 2kg book is held against a vertical wall. The <em>coefficient </em>of friction is 0.45. What is the minimum force that must be applied on the <em>book</em>, perpendicular to the wall, to prevent the book from slipping down the wal

Generally the equation for the  Force  is mathematically given as

F=\frac{mg}{\mu}\\\\F=\frac{2*9.8}{0.45}\\\\

F=44N

Therefore

the minimum force that must be applied on the <em>book is</em>

F=44N

For more information on this visit

brainly.com/question/23379286

8 0
2 years ago
Car a runs a red light and broadsides car b, which is stopped and waiting to make a left turn. car a has a mass of 1,800kg. car
frez [133]

The law of conservation of momentum tells us that momentum is conserved, therefore total initial momentum should be equal to total final momentum. In this case, we can expressed this mathematically as:

mA vA + mB vB = m v

where, m is the mass in kg, v is the velocity in m/s

since m is the total mass, m = mA + mB, we can write the equation as:

mA vA + mB vB = (mA + mB) v

furthermore, car B was at a stop signal therefore vB = 0, hence

mA vA + 0 = (mA + mB) v

1800 (vA) = (1800 + 1500) (7.1 m/s)

<span>vA = 13.02 m/s</span>

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3 years ago
2 decaliters + 800 deciliters = __________ liters?
Stolb23 [73]
Answer is 100 liters
8 0
3 years ago
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