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Varvara68 [4.7K]
3 years ago
9

If more waves start passing a certain point every second,

Physics
1 answer:
ArbitrLikvidat [17]3 years ago
8 0
It would be B. I think
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In which of these situations is convection most likely the main form of heat transfer? A.Warm air from a heater on the first flo
Kitty [74]
The answer is D.An ice cube melts when a person holds it in his hand 
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3 years ago
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How to find new pressure of gas if bottle explodes
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If the container explodes there is no pressure, becuase all your gas has escaped its container, there for, you ain’t got no gas
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3 years ago
Un tubo cilindrico hueco de cobre mide 3 m de longitud tienen un diametro exterior de 4cm y un diametro interior de 2 cm¿cuanto
Irina-Kira [14]

Answer:

 W = 9.93 10² N

Explanation:

To solve this exercise we must use the concept of density

           ρ = m / V

the tabulated density of copper is rho = 8966 kg / m³

let's find the volume of the cylindrical tube

           V = A L

           V = π (R_ext  ² - R_int ²) L

let's calculate

          V = π (4² - 2²) 10⁻⁴  3

          V = 1.13 10⁻²  m³

         m = ρ V

        m = 8966 1.13 10⁻²

        m = 1.01 10² kg

the weight of the tube

        W = mg

         W = 1.01 10² 9.8

         W = 9.93 10² N

4 0
2 years ago
What advantages does an electromagnet have over a permanent magnet?
KonstantinChe [14]
Electromagnets can be turned off, this makes it easier to release things from the magnetic field. 

Hope this helps :)
4 0
3 years ago
Why does the entropy of a gas increase when it expands into a vacuum? Why does the entropy of a gas increase when it expands int
Mrrafil [7]

Answer:

The entropy of a gas increases when it expands into a vacuum because the number of possible states increases .

Explanation:

When a gas expand in a vacuum, the molecules of the gases vibrates very fast and starting moving with higher velocity in random directions which means the level of disorder in the gases increases.

Now the possible state of the gas molecule increases such as the particle can be located at different position due to increased randomness.

<u>Entropy is the measure of this randomness and thus with this increased randomness entropy also increases.</u>

6 0
3 years ago
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