Author Question: A star of the Sun's diameter, but twice as hot, must be 16X more luminous than the Sun. Indicate ... (Read 70 times)

silviawilliams41 · **on:** Jul 27, 2018

A star of the Sun's diameter, but twice as hot, must be 16X more luminous than the Sun.

Indicate whether the statement is true or false

Question 2

As originally stated, the Copernican model did no better job of predicting planetary behavior than did the Ptolemaic one.

Indicate whether the statement is true or false