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Question
A charged oil drop with a mass of 2 x10-4kg is held suspended by a downward electric field of 300 N/C. The charge on the drop is:
A) +1.5 x106C
B) -1.5 x106C
C) +6.5x10-6C
D) -6.5 x10-6C
E) 0 C
Answer
This answer is hidden. It contains 1 characters.
Related questions
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Q:
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Q:
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Q:
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Q:
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Q:
For a controlled nuclear fusion reaction, one needs:
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B) high number density nand low temperatureT
C) low number density nand high temperature T
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Q:
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Q:
The purpose of a moderator in a nuclear reactor is to:
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Q:
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Q:
Radioactive polonium, 214Po (Z= 84), decays by alpha emission to:
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Q:
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Q:
Bombardment of 28Si (Z= 14) with alpha particles may produce:
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