Which of the following lets you conclude that a compact object cannot be a neutron star and that it must be a black hole?
A) If the mass of the compact object is greater than about 0.5 solar masses
B) If the mass of the compact object is greater than about 3 solar masses
C) If the mass of the compact object is greater than about 1.5 solar masses
D) If the mass of the compact object is greater than about 2 solar masses
B
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The Copernican system was no more accurate than the Ptolemaic system in predicting the positions of the planets because ___________just as in the Ptolemaic system
a. the Copernican system assumed the Earth was at rest at the center b. the Copernican system used elliptical planetary orbits c. the Copernican system used uniform circular motion d. the Copernican system assumed all planets orbited the Sun
Impulse: Which of the following quantities are units of impulse? (There could be more than one correct choice.)
A. N ? m B. kg ? s/m C. kg ? m/s D. N ? s E. kg ? m2/s2
In a good conductor, the highest energy band containing electrons is
A) only partially filled. B) completely filled.
Kinetic energy is proportional to mass
Indicate whether the statement is true or false