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Brums [2.3K]
4 years ago
6

Would a rougher or smoother object absorb thermal energy faster? Why? Give an example.

Physics
1 answer:
Nuetrik [128]4 years ago
5 0
Smoother because it will increase energy and when the energy increases it’ll create heat also . Example: A car racing on a smooth road it’ll go faster than a Car speeding on a bumpy and rough road , Hope that helps .
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Mass and Weight: What is the mass of an object that experiences a gravitational force of 685 N near Earth's surface where g
11Alexandr11 [23.1K]

Answer:

m = 69.9 kg

Explanation:

The mass and the weight of an object are two different quantities. Mass is basically the amount of matter that is present in a body. It remains same everywhere in the universe and measured in kilograms.

Weight is basically a force. It is the force by which earth attracts everything towards itself. The weight of an object changes from planet to planet, with the change in value of the gravitational acceleration (g).

Therefore, the relation between mass and weight of an object is given by the following formula:

W = mg

m = W/g

where,

m = mass = ?

W = Weight = 685 N

g = 9.8 m/s²

Therefore,

m = (685 N)/(9.8 m/s²)

<u>m = 69.9 kg</u>

4 0
3 years ago
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<h2>Carry energy</h2>

- - - - - - - - - - - - - - - - - - - - - - -

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5 0
2 years ago
Find the three longest wavelengths (call them λ1, λ2, and λ3) that "fit" on the string, that is, those that satisfy the boundary
zepelin [54]
If you have a string that is fixed on both ends the amplitude of the oscillation must be zero at the beginning and the end of the string. Take a look at the pictures I have attached. It is clear that  our fundamental harmonic will have the wavelength of:
\lambda_1=\frac{L}{2}
All the higher harmonics are just multiples of the fundamental:
\lambda_n=n\lambda_1\\ \lambda_n=n\frac{L}{2}
Three longest wavelengths are:
n=3; \lambda_3=\frac{3L}{2}\\&#10;n=2; \lambda_2=L\\&#10;n=1; \lambda_=\frac{L}{2}\\&#10;

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4 years ago
PLEASE HELP!!! SCIENCE QUESTION!
Tatiana [17]
C. has to be right, also its the only one that makes sense.
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3 years ago
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How is color related to wavelength?
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B, each color has a different wavelength and that allows the eye to see each color different
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4 years ago
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