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Author Question: A airplane having a metal surface and a wingspan of 25.0 m flies horizontally at 200. m/s where the ... (Read 63 times)

sabina

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on: Jul 29, 2018
A airplane having a metal surface and a wingspan of 25.0 m flies horizontally at 200. m/s where the earth's magnetic field is vertical with magnitude 45.0 T.
 
  (a) What emf is induced across the wings?
  (b) What wingspan would the plane need to produce 1.00-V emf across its wings?
  (c) The plane now reverses direction. Does the polarity of the wingtip emf change? That is, if the left wing was positive before, does it now become negative?

Question 2

The electric field at a point 2.8 cm from a small object points toward the object with a strength of 180,000 N/C. What is the object's charge q? (k = 1/40 = 8.99  109 N  m2/C2 )
 
  A) -16 nC
  B) +16 nC
  C) -17 nC
  D) +17 nC
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tsternbergh47

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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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sabina

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Reply 2 on: Jul 29, 2018
Excellent

triiciiaa

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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