Author Question: One star appears blue-white while another appears yellow-orange. If this is caused by temperature ... (Read 79 times)

jayhills49 · **on:** Jul 29, 2018

One star appears blue-white while another appears yellow-orange. If this is caused by temperature difference, then

A)

the stars are the same brightness.
B)

the yellow-orange star is hotter.
C)

the blue-white star is brighter.
D)

the blue-white star is hotter.
E)

the yellow-orange star is brighter.

Question 2

The number of different kinds of leptons, including antiparticles as different, is

A)

4.
B)

6.
C)

8.
D)

2.
E)

12.