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Black_prince [1.1K]
3 years ago
8

A planet moves forward because of momentum True or False??

Physics
1 answer:
lorasvet [3.4K]3 years ago
8 0

Answer:

true

Explanation:

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In metals, some electrons from the outer shells of atoms are shared with other atoms, with the result that electrons can freely
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<h2>Answer:Option F</h2>

Explanation:

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4 0
4 years ago
At what speed, as a fraction of c, does a moving clock tick at four fifth the rate of an identical clock at rest?
ololo11 [35]

Answer:

The seed as a fraction of the speed of light is \frac{3}{5}c

Solution:

As per the question:

Suppose, t_{i} be the rate of an identical clock between two time intervals.

For a moving clock, moving with velocity 'v', at the clock tick of four-fifth:

t = \frac{5}{4}t_{i}

Now,

Using the relation of time dilation, from Einstein's relation:

t = \frac{t_{i}}{\sqrt{1 - \frac{v^{2}}{c^{2}}}}

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Squaring both sides:

(\frac{5}{4})^{2} = (\frac{1}{\sqrt{1 - \frac{v^{2}}{c^{2}}}})^{2}

\frac{25}{16} = \frac{1}{{1 - \frac{v^{2}}{c^{2}}}}

1 - \frac{16}{25} = \frac{v^{2}}{c^{2}}

\frac{v}{c} = \sqrt{\frac{9}{25}}

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The photoelectric effect proved:
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Answer:

i think c)light has a charge

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Which of the following is moving faster?
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