Kuiper Belt Objects that are caught in a 3:2 orbital resonance with Neptune are referred to as _____
A) aurorae
B) plutinos
C) ovoids
D) ovoli
B
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Weight and g: By how many newtons does the weight of a 100-kg person decrease when he goes from sea level to mountain top at an altitude of 5000 m? The mean radius of the earth is 6.38 × 106 m.
A. 0.60 N B. 1.5 N C. 2.6 N D. 3.6 N E. 9.8 N
The volume of water displaced by a floating 20-ton boat is
A) 20 cubic meters. B) the volume of 20 tons of water. C) the volume of the boat. D) depends on the shape of the ship's hull. E) none of the above
When a capacitor is fully charged, the current through the capacitor in a direct-current circuit is
a. zero. b. at its maximum value. c. equal to the current in a resistive circuit in parallel with the capacitor circuit. d. greater than the current in a resistor that is farther from the battery than the capacitor. e. zero if it is the only capacitor, but maximum if there is another capacitor in series with it.
A particle (charge = 50 mC) moves in a region where the only force on it is an electric force. As the particle moves 25 cm from point A to point B, its kinetic energy increases by 1.5 mJ. Determine the electric potential difference, VB - VA
a. -50 V b. -40 V c. -30 V d. -60 V e. +15 V