What is Hubble's law?
A) The longer the time period between peaks in brightness, the greater the luminosity of the Cepheid variable star.
B) The recession velocity of a galaxy is directly proportional to its distance from us.
C) The recession velocity of a galaxy is inversely proportional to its distance from us.
D) The faster a spiral galaxy's rotation speed, the more luminous it is.
E) The faster a spiral galaxy's rotation speed, the less luminous it is.
Question 2
Nonscientific practices that make no claims about how the natural world works do not conflict with science.
Indicate whether the statement is true or false
The Geologic Time Scale
Using a vacuum hose and a test light to ground one cylinder at a time on a distributorless ignition ...
How to solve a distance, time, speed problem using linear algebra
Embryonic Period - End of the 4th week
This table shows the growth of a crowd at a rally over a 3 h period.
Greater Long-nosed Tree Shrew (Tupaia tana), Borneo and Sumatra.