Question

Problem 2 [6 point] The universe appears to consist of 4.6% conventional matter (atoms), 24% dark matter, and 71.4% dark energy. Please answer the following questions: (a) [2 points] Which of these components of the universe result in attractive gravitational forces and which in repulsive? (b) [2 points] Explain one of the measurements that astronomers have performed to detect dark matter. Be sure to address the null hypothesis: what would we expect to observe if there was no dark matter? (c) [2 points] Explain one of the measurements that astronomers have performed to detect dark energy. Be sure to address the null hypothesis: what would we expect to observe if there was no dark energy?

          Problem 2 [6 point]
The universe appears to consist of 4.6% conventional matter (atoms), 24% dark matter, and
71.4% dark energy. Please answer the following questions:
(a) [2 points] Which of these components of the universe result in attractive gravitational forces
and which in repulsive?
(b) [2 points] Explain one of the measurements that astronomers have performed to detect
dark matter. Be sure to address the null hypothesis: what would we expect to observe if
there was no dark matter?
(c) [2 points] Explain one of the measurements that astronomers have performed to detect
dark energy. Be sure to address the null hypothesis: what would we expect to observe if
there was no dark energy?

Problem 2 [6 point]
The universe appears to consist of 4.6% conventional matter (atoms), 24% dark matter, and
71.4% dark energy. Please answer the following questions:
(a) [2 points] Which of these components of the universe result in attractive gravitational forces
and which in repulsive?
(b) [2 points] Explain one of the measurements that astronomers have performed to detect
dark matter. Be sure to address the null hypothesis: what would we expect to observe if
there was no dark matter?
(c) [2 points] Explain one of the measurements that astronomers have performed to detect
dark energy. Be sure to address the null hypothesis: what would we expect to observe if
there was no dark energy?

Added by Erik J.

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