In the context of the mass-luminosity relation, a star with a mass of 2 solar masses on the main sequence would have a luminosity of approximately _____ solar luminosities.
A) 2.5
B) 4
C) 11
D) 0.5
Question 2
Which of the following statements is true of white dwarfs?
A) Some of them are among the hottest stars known.
B) Few of them are positioned in the upper-right corner of the Hertzsprung-Russell (H-R) diagram.
C) They have high luminosities.
D) They have a very big surface area from which they radiate energy.
The main events of mitosis and meiosis
Solar Granulation
The relation between the physical and perceptual dimensions of sound.
Due to compressibility, atmospheric mass gradually “thins out” with height.
Color in Context
What is the isotopic atomic mass of an isotope if 9.7023 1022 atoms weighs 4.0256 g?