Yellow dwarfs have ________ spectral lines than red giants.
A. wider
B. narrower
C. weaker
D. stronger
Answer: A
Physics & Space Science
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Harlow Shapley mapped the Milky Way using the period-luminosity relationship for RR Lyrae stars
Indicate whether the statement is true or false
Physics & Space Science
Why might some choose a "soft" energy path, while others choose a "hard" path? Explain their respective reasons
What will be an ideal response?
Physics & Space Science
Neutron stars must ____
a. rotate very rapidly b. be very luminous c. have weak magnetic fields d. have a mass greater than three solar masses e. have about the same surface temperature as the star that created them
Physics & Space Science
A lava flow radiometrically dated at 300 million years lies just below sedimentary layer A and just above sedimentary layer B. What can be said of the ages of beds A and B?
Physics & Space Science