Equipotential surfaces around a point charge are
a. spherical.
c. planar.
b. cylindrical.
d. none of these choices.
A
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For one-dimensional conduction, why are the boundary control volumes half the size of interior control volumes?
GIVEN One-dimensional conduction EXPLAIN (a) Why the boundary control volume is half the size of internal control volumes
GPS stands for
a. the metric system of measurement. b. grams per second. c. Global Positioning System. d. a space shuttle. e. none of the above.
A sinusoidally varying potential difference has amplitude 170 V. What is its minimum instantaneous value?
1.170 V 2.120 V 3.0 4.-120 V 5.-170 V
Which of the following quantities is conserved for a planet orbiting a star in a circular orbit? Only the planet itself is to be taken as the system; the star is not included.
A. Momentum and energy. B. Energy and angular momentum. C. Momentum and angular momentum. D. Momentum, angular momentum and energy. E. None of the above.