You observe an x-ray burster. Based on current understanding, you can also conclude that you are observing
A) a close binary system in which one member is a white dwarf.
B) a close binary system in which one member is a neutron star.
C) a close binary system in which one member is a black hole.
D) a close binary system in which one member is a neutron star and the other is a black hole.
B) a close binary system in which one member is a neutron star.
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Gravitational time dilation can be observed in the spectra of atoms on the surface of the Sun
Indicate whether the statement is true or false
Semiconductors: If a battery is connected to a diode with the positive terminal to the p side and the negative terminal to the n side, then diode is said to be
A. forward biased. B. reversed biased. C. Neither choice is correct.
The possibility of life in a Europan ocean probably rests on the question of
A) whether there is enough energy in a useful form to support biology B) whether there is enough water present C) whether there is enough raw materials to build biological molecules D) the level of salinity present
If a = 60 cm, b = 80 cm, Q = ?6.0 nC, and q = 3.0 nC in the figure, what is the magnitude of the electric field at point P?
A. 71 N/C B. 56 N/C C. 60 N/C D. 53 N/C E. 67 N/C