Most white dwarfs
A) have relatively hot surfaces.
B) have relatively cool surfaces.
C) evolve into black holes.
D) are about as dense as their parent stars.
Answer: A
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Vector Nature of Angular Quantities: As you are leaving a building, the door opens outward. If the hinges on the door are on your right, what is the direction of the angular velocity vector of the door as you open it?
A. up B. down C. to your left D. to your right E. forwards
A brass box is in the shape of a cube. The coefficient of linear thermal expansion is 
If the temperature of the box is increased by 20
then what is the fractional change in the volume of the box?
A. 0.08% B. 0.11% C. 0.15% D. 0.25% E. 0.30%
The impulse experienced by a body is equivalent to its change in:
a. velocity. b. kinetic energy. c. momentum. d. None of the above choices are valid.
The probability density for an electron that has passed through an experimental apparatus is shown in the figure
If 4100 electrons pass through the apparatus, what is the expected number that will land in a 0.10 mm-wide strip centered at x = 0.00 mm? A) 140 B) 1400 C) 450 D) 45