What happens when a core's mass is less than 3 solar masses but greater than 1.44 solar masses?
a. Electron degeneracy pressure can no longer support the core and the electrons combine with the protons to generate neutrons and neutrinos, the neutrinos of which supply neutron degeneracy pressure to support the neutron star. b. Electron degeneracy pressure can no longer support the core and the electrons combine with the protons to generate neutrons and neutrinos, the neutrons of which supply neutron degeneracy pressure to support the neutron star.
c. Electron degeneracy pressure supports the core of the white dwarf. d. Electron degeneracy pressure can no longer support the core and the electrons combine with the protons to generate neutrons and neutrinos, the neutrinos of which supply neutron degeneracy pressure to support the black hole star.
b
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Which equation represents the overall nuclear fusion process of the Sun?
a. 4H => 8He + energy b. 2 1H => 1He + energy c. 4 1H => 2 1He – energy d. 4 1H => 4He + energy e. 4 4H => 4He – energy
When referring to the "cgs" system, what does the "c", the "g", and the "s" stand for?
What will be an ideal response?
A ball is thrown downward from the top of a building with an initial speed of 25 m/s. It strikes the ground after 2.0 s. How high is the building, assuming no air?
A) 20 m B) 30 m C) 50 m D) 70 m
The field just outside the surface of a long conducting cylinder which has a 2.0-cm radius points radially outward and has a magnitude of 200 N/C. What is the charge density on the surface of the cylinder?
a. 2.7 nC/m2 b. 1.8 nC/m2 c. 3.5 nC/m2 d. 4.4 nC/m2 e. 0.90 nC/m2