The densely packed neutrons of a neutron star cannot balance the inward pull of gravity if the total mass is
A) greater than Schwartzschild's limit of 3 solar masses.
B) less than 1.0 solar masses.
C) Chandrasekhar's limit of 1.4 solar masses.
D) not at least 25 solar masses.
E) between 1.4 and 2.0 solar masses.
Question 2
According to our present theory of solar system formation, which of the following statements about the growth of terrestrial and jovian planets is not true?
A) Both types of planet begun with planetesimals growing through the process of accretion, but only the jovian planets were able to capture hydrogen and helium gas from the solar nebula.
B) Swirling disks of gas, like the solar nebula in miniature, formed around the growing jovian planets but not around the growing terrestrial planets.
C) The jovian planets began from planetesimals made only of ice, while the terrestrial planets began from planetesimals made only of rock and metal.
D) The terrestrial planets formed inside the frost line of the solar nebula and the jovian planets formed beyond it.
A white dwarf star in orbit around Sirius (artist's impression)
A Total Eclipse of the Sun
Star-Nosed Mole
Do you know how kangaroos balance their body
Renal regulation of sodium and potassium balance.
Agricultural Land as a Fraction of Total Wealth in the United Kingdom