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Tom [10]
2 years ago
6

30 points must be a legitimate answer and correct answer or I will report

Physics
2 answers:
serious [3.7K]2 years ago
8 0
The correct answer is C !
kupik [55]2 years ago
6 0

Answer:

it's C

Explanation:

have a nice day............

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State the conservation of momentum theorem
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Answer:

The total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.

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The speed of light in vacuum is exactly 299,792,458 m/s. A beam of light has a wavelength of 651 nm in vacuum. This light propag
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Answer:

v=2.58\times10^8m/s

Explanation:

The index of refraction is equal to the speed of light c in vacuum divided by its speed v in a substance, or n=\frac{c}{v}. For our case we want to use v=\frac{c}{n}, which for our values is equal to:

v=\frac{c}{n}=\frac{299792458m/s}{1.16}=258441774.138m/s

Which we will express with 3 significant figures (since a product or quotient must contain the same number of significant figures as the measurement with the  <em>least</em> number of significant figures):

v=2.58\times10^8m/s

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Based on the law of conservation of energy, how can we reasonably improve a machine’s ability to do work?
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D. Redefine the machine’s system boundaries.

The Law of Conservation of Energy states that energy can't be created not destroyed. Energy, however, can be changed from one form to another. The law applies to isolated systems only. By redefining and expanding the system (including all factors affecting it) , the machine's ability to do work should improve.

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330 Hz

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