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Author Question: Two point charges of + 40.0 C and - 10.0 C are separated by a distance of 20.0 cm. A +7.00 C charge ... (Read 142 times)

bobbysung

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on: Jul 27, 2018
Two point charges of + 40.0 C and - 10.0 C are separated by a distance of 20.0 cm. A +7.00 C charge is placed midway between these two charges. What is the electric force acting on this charge because of the other two charges?
 
  A) 0.453 N directed towards the negative charge
  B) 3.15 N directed towards the negative charge
  C) 3.15 N directed towards the positive charge
  D) 315 N directed towards the positive charge
  E) 315 N directed towards the negative charge

Question 2

The heating element in an electric drier operates on 240. V and generates heat at the rate of 2.00 kW. The heating element shorts out and, in repairing it, the owner shortens the Nichrome wire by 10.
 
  (Assume the temperature is unchanged, although in reality, the resistivity of the wire will depend on its temperature.) What effect will the repair have on the power dissipated in the heating element?
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eliasc0401

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Reply #1 on: Jul 27, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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bobbysung

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Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


eliasc0401

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Reply #3 on: Jul 27, 2018
Great! Please up vote :D


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