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Author Question: Two identical metal bars are heated up until they are both glowing. One of them is red hot and the ... (Read 28 times)

Frost2351

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on: Jul 29, 2018
Two identical metal bars are heated up until they are both glowing. One of them is red hot and the other is blue hot. Which one is hotter, the one that glows red or the one that glows blue?
 
  A) the red one
  B) the blue one
  C) We cannot tell without knowing more about the two bars.

Question 2

A flat circular wire loop of area 0.25 m2 carries a current of 5.0 A. This coil lies on a horizontal table with the current flowing in the counterclockwise direction when viewed from above.
 
  At this point, the earth's magnetic field is 1.2  10-5 T directed 60 below the horizontal. What is the magnitude of the torque that the earth's magnetic field exerts on this loop?
  A) 2.5  10-6 N  m
  B) 5.0  10-6 N  m
  C) 7.5  10-6 N  m
  D) 1.0  10-5 N  m
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lkoler

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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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Frost2351

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Reply 2 on: Jul 29, 2018
Gracias!

dyrone

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Reply 3 on: Yesterday
Excellent

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