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Author Question: A charged particle moving along the +x-axis enters a uniform magnetic field pointing along the ... (Read 69 times)

mmm

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A charged particle moving along the +x-axis enters a uniform magnetic field pointing along the +z-axis. A uniform electric field is also present. Due to the combined effect of both fields, the particle does not change its velocity.
 
  What is the direction of the electric field? A) along the -y-axis
  B) along the +y-axis
  C) along the -x-axis
  D) along the +x-axis
  E) along the -z-axis

Question 2

Two taut strings of identical mass per unit length are stretched with the same tension with their ends fixed, but one string is 0.330 cm longer than the other. Waves on these strings propagate at 34.0 m/s.
 
  The fundamental frequency of the shorter string is 258 Hz. What is the beat frequency when each string is vibrating at its fundamental frequency? A) 12.3 Hz
  B) 9.00 Hz
  C) 12.0 Hz
  D) 12.7 Hz
  E) 11.3 Hz


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ecabral0

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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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mmm

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


blakcmamba

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Reply 3 on: Yesterday
Wow, this really help

 

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