How does an accretion disk around a neutron star differ from an accretion disk around a white dwarf?
A) The accretion disk around a neutron star is made mostly of helium while the accretion disk around a white dwarf is made mostly of hydrogen.
B) The accretion disk around a neutron star is more likely to give birth to planets.
C) The accretion disk around a neutron star is much hotter and emits higher-energy radiation.
D) The accretion disk around a neutron star always contains much more mass.
C
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Pascal's Principle: The water pressure to an apartment is increased by the water company. The water enters the apartment through an entrance valve at the front of the apartment. Where will the increase in the static water pressure be greatest when no water is flowing in the system?
A. at a faucet close to the entrance valve B. at a faucet far from the entrance valve C. It will be the same at all faucets. D. There will be no increase in the pressure at the faucets.
Elliptical galaxies contain only Population ________ stars and little gas and dust
Fill in the blank(s) with correct word
How is right ascension similar to longitude on Earth?
What will be an ideal response?
Eclipses can occur only when, viewed from Earth, the Sun is near one of the _______________. of the Moon's orbit
Fill in the blank(s) with correct word