A recurring nova might eventually build up enough mass to become a Type ________ supernova
Fill in the blank(s) with correct word
I
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The metric prefix for one one-thousandth is
A) milli. B) centi. C) kilo. D) mega. E) giga.
A conducting sphere contains positive charge distributed uniformly over its surface. Which statements about the potential due to this sphere are true? All potentials are measured relative to infinity. (There may be more than one correct choice.)
A) The potential is lowest, but not zero, at the center of the sphere. B) The potential at the center of the sphere is zero. C) The potential at the center of the sphere is the same as the potential at the surface. D) The potential at the surface is higher than the potential at the center. E) The potential at the center is the same as the potential at infinity.
An incompressible fluid flows steadily through a pipe that has a change in diameter. The fluid speed at a location where the pipe diameter is 8.0 cm is 1.28 m/s. What is the fluid speed at a location where the diameter has narrowed to 4
0 cm? A) 0.32 m/s B) 0.64 m/s C) 1.28 m/s D) 2.56 m/s E) 5.12 m/s
The electron density in copper is 8.49 × 10^28 electrons/m3 . The electron charge is e = -1.60 × 10^-19 C. When a 1.00 A current is present in a copper wire with a 0.40 cm2 cross-section, the electron drift velocity, in m/s, with direction defined relative to the current density, is
a. -1.84 × 10^-6. b. +1.84 × 10^-6. c. -1.84. d. -5.43 × 10^5. e. +5.43 × 10^5.