Author Question: Approximately how long did the era of nucleosynthesis last? A) 10-10 second B) 0.001 second C) ... (Read 21 times)

james · **on:** Jul 27, 2018

Approximately how long did the era of nucleosynthesis last?

A) 10-10 second
B) 0.001 second
C) 5 seconds
D) 5 minutes
E) 5 years

Question 2

Each of the following is a prediction of the theory of relativity. Which one is crucial to understanding how the Sun provides light and heat to Earth?

A) If you observe someone moving by you, you'll see their time running slowly.
B) Gravity is curvature of spacetime.
C) E = mc2
D) Time runs slower on the surface of the Sun than on Earth.
E) Space is different for different observers. Time is different for different observers. Spacetime is the same for everyone.