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Pretend that galaxies are spaced evenly, 4.0 Mpc apart, and the average mass of a galaxy is 1.0 x 1011 Me. What is the average density (in kg/m3) of matter in the universe? (Note: The volume of a sphere is r3, and the mass of the sun is 2.0 x 1030 kg.) kg/m3 Which model universe does this density value support? O flat O open O closed

Pretend that galaxies are spaced evenly, 4.0 Mpc apart, and the average mass of a galaxy is 1.0 x 1011 Me. What is the average density (in kg/m3) of matter in the universe? (Note: The volume of a sphere is r3, and the mass of the sun is 2.0 x 1030 kg.) kg/m3 Which model universe does this density value support? O flat O open O closed

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**Density Calculation and Universe Model Selection** Pretend that galaxies are spaced evenly, 4.0 Mpc apart, and the average mass of a galaxy is \(1.0 \times 10^{11} M_{\odot}\). What is the average density (in kg/m\(^3\)) of matter in the universe? (Note: The volume of a sphere is \(\frac{4}{3}\pi r^3\), and the mass of the sun is \(2.0 \times 10^{30}\) kg.) \[ \text{Density:} \ \underline{\phantom{000000000000}} \ \text{kg/m}^3 \] Which model universe does this density value support? - ⬜ flat - ⬜ open - ⬜ closed
Transcribed Image Text:**Density Calculation and Universe Model Selection** Pretend that galaxies are spaced evenly, 4.0 Mpc apart, and the average mass of a galaxy is \(1.0 \times 10^{11} M_{\odot}\). What is the average density (in kg/m\(^3\)) of matter in the universe? (Note: The volume of a sphere is \(\frac{4}{3}\pi r^3\), and the mass of the sun is \(2.0 \times 10^{30}\) kg.) \[ \text{Density:} \ \underline{\phantom{000000000000}} \ \text{kg/m}^3 \] Which model universe does this density value support? - ⬜ flat - ⬜ open - ⬜ closed
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