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NNADVOKAT [17]
3 years ago
5

A white dwarf is:______.

Physics
1 answer:
bija089 [108]3 years ago
6 0

Answer:

the exposed core of a dead star, supported by electron degeneracy pressure.

Explanation:

A white dwarf is a low luminosity exposed core of a dead star having mass comparable to the sun but volume comparable to the earth . So its density is very high . These stars have lost the capacity to generate energy through the process of fusion . Due to high gravitational energy , it goes on shrinking but ultimately balanced by electron degeneracy pressure. It is not a main sequence star as it has lost the power of fusion .

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3) A tolley of mass 4kg, moving with a velocity
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Answer:

3.57 m/s

Explanation:

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andrezito [222]

Answer:

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Explanation:

Two vectors are given in rectangular components form as follows:

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Given

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Horizontal acceleration will give only horizontal range and horizontal velocity.

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