Suppose That the Hubble Constant Had the Value 35

question 23

Short Answer

Suppose that the Hubble constant had the value 35.0 km/s per million light-years. (1y=3.156 x 10⁷s ,m_h ≈ m_proton = 1.67 × 10^-27 kg,c = 3.00 × 10⁸ m/s, 1 light-year =9.461 x 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?

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Definitions:

Temperaments

Inherent traits of a person's personality that influence their behavior and emotional reactions from a young age.

Parenting Strategies

Techniques or methods adopted by parents in the upbringing of their children to foster growth, discipline, and education.

Parenting Style

The manner in which a parent behaves towards and interacts with their child, including disciplinary strategies, warmth, and communication.

Emotional Climate

The overarching mood or atmosphere within a particular setting, influenced by the collective emotions and interactions of its members.