Suppose That the Hubble Constant Had the Value 35

question 40

Short Answer

Suppose that the Hubble constant had the value 35.0 km/s per million light-years. (1 y = 3.156 × 10⁷ s, ^mH ≈ ^mproton = 1.67 × 10^-27 kg, c = 3.00 × 10⁸ m/s, 1 light-year = 9.461 × 10¹⁵ m, G = 6.67 × 10^-11 N ∙ m²/kg²)
(a) What would be the maximum density the universe could have that would still allow it to expand forever?
(b) Under the conditions of part (a), how many hydrogen atoms would we expect to find, on the average, in a volume of space measuring 3.00 m by 8.00 m by 8.00 m?

---

Definitions:

Financial Plans

Strategies developed to achieve financial goals, including savings, investments, and managing expenses and income.

Percentage Sales Approach

A financial planning approach that forecasts future financial statements based on the expected percentage change in sales.

Finance Perspective

An approach or viewpoint emphasizing financial metrics and outcomes in decision-making processes or analysis.

Sustainable Growth Rate

The maximum rate at which a company can grow its revenues and earnings without needing to increase financial leverage.