When two light bulbs are connected in parallel to a battery, the electric resistance that the battery senses is
A) greater than the resistance of either bulb.
B) less than the resistance of either bulb.
C) none of the above
Answer: B
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How much energy is released in the reaction 2H + 2H ? 4He? [m(2H) = 2.012102 u, m(4He) = 4.002603 u]
A) 20 MeV B) 18 MeV C) 13 MeV D) 12 MeV E) 36 MeV
State Charles's law
What will be an ideal response?
The magnetic field produced by a long straight current-carrying wire is
A) proportional to both the current in the wire and the distance from the wire B) proportional to the current in the wire and inversely proportional to the distance from the wire. C) inversely proportional to the current in the wire and proportional to the distance from the wire. D) inversely proportional to both the current in the wire and the distance from the wire. E) independent of both the current in the wire and the distance from the wire.
Seismic waves that propagate through Earth are known as
a. focus waves. b. surface waves. c. gravity waves. d. body waves.