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Author Question: A +3.0-C point charge is initially extremely far from a positive point charge Q. You find that it ... (Read 118 times)

Tazate

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A +3.0-C point charge is initially extremely far from a positive point charge Q.
 
  You find that it takes 41 J of work to bring the +3.0-C charge to the point x = 3.0 mm, y = 0.0 mm and the point charge Q to the point x = -3.0 mm, y = 0.00 mm. What is Q? (k = )
  A) 27 pC B) 9.1 C C) 4.6 C D) 55 nC

Question 2

An aluminum rod 17.400 cm long at 20C is heated to 100C. What is its new length? Aluminum has a linear expansion coefficient of 25  10-6 K-1.
 
  A) 17.435 cm
  B) 17.365 cm
  C) 0.348 cm
  D) 0.0348 cm


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poopface

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Tazate

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Both answers were spot on, thank you once again




 

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