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gizmo_the_mogwai [7]
3 years ago
5

The peak luminosity of a white dwarf supernova is around 1010 Lsun, and it remains brighter than 108 Lsun for about 150 days. In

comparison, the luminosity of a bright Cepheid variable star is about 10,000 Lsun. The Hubble Space Telescope is sensitive enough to make accurate measurements of apparent brightness for Cepheid variable stars up to a distance of about 100 million light-years. Estimate the distance of a fading white dwarf supernova of luminosity 108 Lsun whose apparent brightness is comparable to that of a bright Cepheid variable star 100 million light-years from Earth. How does the distance of that supernova compare to the size of the observable universe?

Physics
1 answer:
Airida [17]3 years ago
8 0

Answer:

Explanation: find the attached solution below

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1. Water boils at 100°C at sea level. If the water in this experiment did not boil at 100°C, what could be the reason?
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Explanation:

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Action and reacion forces are described by which of Newton's laws of motion?
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A 2.00-kg block of ice is moving on a frictionless horizontal surface. At t = 0 the block is moving to the right with a velocity
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Explanation:

a )

We shall apply the concept of impulse .

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b )

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