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k0ka [10]
3 years ago
7

When a star is in the main-sequence stage of its life, it is fusing __________ into ________

Physics
1 answer:
gizmo_the_mogwai [7]3 years ago
7 0
Hydrogen into helium
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Which of the following refers to stored energy that an object has due to its height?
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Vertical:

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3 years ago
A piece of taffy slams into and sticks to another identical piece of taffy that is at rest. The momentum of the two pieces stuck
-Dominant- [34]

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C. 50%

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mu = 2mv\\v = \frac{u}{2} \\

The initial kinetic energy = \frac{mu^{2} }{2}

As the Kinetic energy partly converted into heat.

The final kinetic energy = \frac{m(\frac{u}{2})^{2}  }{2} = \frac{mu^{2} }{4}

Change in the kinetic energy = \frac{mu^{2} }{2} - \frac{mu^{2} }{4} = \frac{mu^{2} }{4}

now we can determine the fraction of kinetic energy that has turned into heat

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3 0
4 years ago
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