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Fudgin [204]
3 years ago
6

Suppose you wanted to "pull an Einstein," and create a static universe  in which the gravitational attraction of matter is exac

tly balanced by the gravitational repulsion of dark energy with equation-of-state parameter − 1/ 3 < wq < − 1 and energy density εq.
What is the necessary matter density (εm) required to produce a static universe, expressed in terms of εq and wq?


Will the curvature of this static universe be negative or positive?


What will be its radius of curvature, expressed in terms of εq and wq?

Physics
2 answers:
Stolb23 [73]3 years ago
8 0

Answer:

The curvature of this static universe is positive.

Explanation: Please find the attached files for the solution and answers

weeeeeb [17]3 years ago
6 0

Answer:

Find the solution attached

Explanation:

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The origin of an x axis is placed at the center of a nonconducting solid sphere of radius R that carries a charge +qsphere distr
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See  attached figure.

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--------------------

if R<x<2R   AND E_{total}=E_{Q}-E_{q}=0

E_{total}=E_{Q}-E_{q}=0=kQ/(x^{2}) - kq/(2R-x^{2})

remember that  q=49Q/64

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