A uniform electric field, with a magnitude of 500 V/m, is points in the +x direction. If the potential at x = 5.0 m is 2500 V, what is the potential at x = 2.0 m?
A) 0.50 kV
B) 1.0 kV
C) 2.0 kV
D) 4.0 kV
E) 5.0 kV
D
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The determination of the composition of a material by bombarding it with neutrons and monitoring the emitted radiation is
a. nuclear fission analysis b. nuclear fusion analysis c. neutron activation analysis d. nuclear emission analysis e. beta decay analysis
A gymnast performing somersaults in a high-flying plane moving at constant velocity needs to make
A) small adjustments to compensate for the airplane's velocity. B) major adjustments to compensate for the airplane's velocity. C) no adjustments. D) none of the above
On a clear day, the sky appears to be more blue toward the zenith (overhead) than it does toward the horizon. This occurs because
A) the atmosphere is denser higher up than it is at the earth's surface. B) the temperature of the upper atmosphere is higher than it is at the earth's surface. C) the sunlight travels over a longer path at the horizon, resulting in more absorption. D) the atmosphere is more reddish over the ocean.
Which has a greater value, a newton of gold won on Earth or a newton of gold won on the Moon?
1.the newton of gold on the Earth 2.the newton of gold on the moon 3.The value is the same, regardless.