Potential Energy: The figure shows a group of three particles, all of which have charge Q = 8.8 nC. How much work did it take to assemble this group of charges if they all started out extremely far from each other? (k = 1/4??0 = 9.0 × 109 N ? m2/C2) 
A. 5.5 × 10-5 J
B. 6.2 × 10-5 J
C. 5.7 × 10-5 J
D. 5.9 × 10-5 J
Answer: A
Physics & Space Science
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Metric system: How many nanoseconds does it take for a computer to perform one calculation if it performs 6.7 × 107 calculations per second?
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Physics & Space Science
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Indicate whether the statement is true or false
Physics & Space Science
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Physics & Space Science