Because Energy Must Be Conserved, a Collapsing Cloud of Gas

question 79

Multiple Choice

Because energy must be conserved, a collapsing cloud of gas must

• A) eventually expand again.
• B) rotate more slowly with time.
• C) always be at the same temperature.
• D) heat up.
• E) cool down.

---

Definitions:

Tit-For-Tat

A strategy in game theory where a player replicates an opponent's actions, commonly used in the context of cooperative and retaliatory behaviors.

Prisoner's Dilemma

A fundamental problem in game theory showing that two individuals acting in their own self-interest do not produce the optimal outcome.

Game Theory

A branch of mathematics and economics that studies the strategic interaction among rational decision-makers, using models to predict outcomes in competitive situations.

Pure Strategy Equilibria

A game theory concept where each player chooses a single strategy that results in no player having an incentive to unilaterally change their choice.