Gas falling into a black hole:
a. is heated to millions of degrees through the loss of gravitational energy
b. is cooled to near absolute zero through the loss of gravitational energy
c. releases energy, all of which is absorbed by the black hole
d. never reaches the black hole due to the effect of time dilation
e. orbits the black hole but cannot cross the event horizon
a
You might also like to view...
What is the magnitude of the magnetic force on a charged particle (Q = 5.0 mC) moving with a speed of 80 km/s in the positive x direction at a point where Bx = 5.0 T, By = -4.0 T, and Bz = 3.0 T?
a. 2.8 N b. 1.6 N c. 1.2 N d. 2.0 N e. 0.4 N
Density is calculated as
A. mass times volume. B. volume divided by mass. C. mass divided by volume. D. mass times gravity.
Unlike electric charges, magnetic poles cannot be
A) located. B) isolated. C) destroyed.
____________________ are great lava flows covering 17% of the lunar surface
Fill in the blank(s) with correct word