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Author Question: If an electron in the lab has a kinetic energy equal to twice its rest energy, what is its speed in ... (Read 116 times)

APUS57

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on: Jul 29, 2018
If an electron in the lab has a kinetic energy equal to twice its rest energy, what is its speed in the lab?
 
  A) 0.87c B) 0.89c C) 0.94c D) 0.91c E) 0.84c

Question 2

Two parallel square metal plates, 8.4 cm on each side, are 2.5 mm apart and carry equal but opposite charge uniformly distributed over their facing surfaces.
 
  How much excess charge is there on each plate if the electric field between the plates has a magnitude of 2.0  106 N/C? (k = 1/40 = 8.99  109 N  m2/C2 )
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at

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Reply #1 on: Jul 29, 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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APUS57

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

sultansheikh

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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