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monitta
3 years ago
6

Find the radius to which the sun must be compressed for it to become a black hole.

Physics
1 answer:
ankoles [38]3 years ago
7 0

Answer:

2950 m

Explanation:

The radius to which the sun must be compressed to become a black hole is equal to its Schwarzschild radius, which is given by the formula:

r=\frac{2GM}{c^2}

where

G is the gravitational constant

M is the mass of the star

c is the speed of light

For the Sun, its mass is

M=1.99\cdot 10^{30}kg

Therefore, its Schwarzschild radius is

r=\frac{2(6.67\cdot 10^{-11}Nm^2kg^{-2}(1.99\cdot 10^{30} kg)}{(3\cdot 10^8 m/s)^2}=2950 m

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Answer:

Decreases.

Explanation:

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When the negatively charge ion is at the position of the negative probe than its potential energy is positive when it is move towards the positive probe it's potential energy becomes negative due to the negative ion.

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notsponge [240]
The can be found elsewhere and as follows:


<span>A. of magnetic effects.
B. the ball tries to pull the rod’s electrons over to it.
C. the rod polarizes the metal.
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</span><span>
I believe the correct answer is option C. If a negatively charged rod is held near a neutral metal ball, the ball is attracted to the rod. this happens because </span>the rod polarizes the metal. Hope this answers the question.
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