Physics, 13.03.2020 18:32 johara

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

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 12:30

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

Answers: 1

Answer

Physics, 22.06.2019 13:10

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

Answers: 3

Answer

Physics, 22.06.2019 17:30

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.

Answers: 1

Answer

Physics, 22.06.2019 18:00

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2

Answers: 1

Answer

You know the right answer?

Suppose you wanted to "pull an Einstein," and create a static universe in which the gravitational...

Questions