Consider some material that has been cooled until it has become a superconductor. If it is cooled even further its resistance will:
a. stay constant and non-zero.
c. decrease.
b. increase.
d. None of these choices.
D
You might also like to view...
Why does the Moon play a larger role in tides than the Sun?
What will be an ideal response?
Black dwarfs are
A) rare, for collapsing cores of over three solar masses are uncommon. B) very common, making up the majority of the dark matter in the universe. C) often made from very low mass protostars that never fuse hydrogen. D) rare, for few binary systems are close enough for this merger to happen. E) not found yet; the oldest, coldest white dwarf in the Galaxy has not cooled enough yet.
An object of 3.0-kg mass is located at (0.0 m, 8.0 m), and an object of 1.0-kg mass is located at (12 m, 0.0 m). You want to add a 4.0-kg object so that the center of mass of the three-object system will be at the origin
What should be the coordinates of the 4.0-kg object? A) (-3.0 m, -6.0 m) B) (-12 m, -8.0 m) C) (3.0 m, 6.0 m) D) (-6.0 m, -3.0 m)
The expression(s) indicating the number of nucleons in a nucleus is
a. A b. N c. Z d. Z + N e. A – Z