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suter [353]
3 years ago
8

When the comet passes close to the sun, it has a visible tail. Typically, the comet is only visible for a matter of days while i

t may be invisible for years. Why does the comet spend so little time close to the sun?

Physics
1 answer:
Nataly [62]3 years ago
7 0

Answer:

The comet is locked in the Sun's gravity. as it falls deeper in the gravity we'll, its velocity increases. As is travels closer to the Sun, it is trying to break away, but cannot. This transforms into a sideways movement that produces a tight turn. It races further out of the gravity well, and sheds velocity.

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Musya8 [376]

Answer:

It would take 16.7 s for the work to be done by the engine.

Explanation:

From the question, given: Power = 390.3 kW

                                           Work to be done = 6.5 x 10^{6} J

But, power and work done with respect to time, has a relationship of:

Power = \frac{work done}{time}

So that,

time = \frac{work done}{Power}

Thus,

time  = \frac{6.5*10^{6} }{390.3*10^{3} }

       = 16.6539

time = 16.7 s

Time required is 16.7 seconds.

Thus, it would take 16.7 s for the work to be done by the engine.

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3 years ago
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If a Cu 2+ ion that is initially at rest accelerates through a potential difference of 12 V without friction, how much kinetic e
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