After a supernova explosion, the remains of the stellar core
A) will always be a neutron star.
B) be either a neutron star or a black hole.
C) will always be a black hole.
D) may be either a white dwarf, neutron star, or black hole.
B
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Why is thermal escape of atmospheric gas much easier from the Moon than from Earth?
A) The Moon's average surface temperature is lower than Earth's. B) The Moon lacks a global magnetic field, while Earth has one. C) Outgassing on the Moon releases gases with lower masses than does outgassing on Earth. D) The Moon's gravity is so much weaker than Earth's.
A traveler has about $536 in his checking account, about $2107 in his savings account and exactly $7.62 in his wallet. To the greatest precision warranted, how much money does this shopper have?
A) $2651 B) $2,650 C) $2,650.6 D) $2,650.62 E) $2,650.620
In the figure, a block of mass m is moving along the horizontal frictionless surface with a speed of 5.70 m/s
If the slope is 11.0° and the coefficient of kinetic friction between the block and the incline is 0.260, how far does the block travel up the incline? What will be an ideal response?
The COBE data, combined with computer simulations, strongly supported the ________ epoch, showing how ripples in the background radiation could collapse into galaxies over time
Fill in the blank(s) with correct word