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Murljashka [212]
3 years ago
13

The first law of thermodynamics is just another form of the _____.

Physics
1 answer:
Oksi-84 [34.3K]3 years ago
8 0
A. Conservation of energy
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Describes the relationship between the spectrum of one atom and the spectrum of another?
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The relationship between the number of visible spectral lines are identical for atoms .However they have unique wavelengths.

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<u> Explanation:</u>

A spectrum is a range of frequencies or a range of wavelengths. The photon energy of the emitted photon is equal to the difference between two states. For every atom there are quite many electron transitions and each has a energy difference.

This difference in wavelength causes spectrum .As each element emission spectrum is unique because each atom has different energy and causes uniqueness in the emission spectrum . Hence, due to the difference in energy it emits different wavelengths.

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Mechanical advantage of a machine is the ratio of the output force over the input force or M=Fo/Fi. Since M=1, Fi=Fo, or the input force is equal to the output force. This means that to raise the refrigerator that weighs 900 N, we need the same input force of 900 N, or Fo=Fi=900 N. 
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3 years ago
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HEY CAN ANYONE ANSWER DIS RQ!!!!!!
emmasim [6.3K]

Answer:

Density is the mass to volume ratio of an object.

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The density of water is 1 g/ml or 1 kg/L or 1000 kg/m3

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Explanation:

hope this helps some

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<span>Calculating heat gained or lost requires mass, specific heat, and

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