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Author Question: If the absolute temperature of an object is tripled, the thermal power radiated by this object ... (Read 256 times)

Capo

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on: Jul 29, 2018
If the absolute temperature of an object is tripled, the thermal power radiated by this object (assuming that its emissivity and size are not affected by the temperature change) will
 
  A) increase by a factor of 3.
  B) increase by a factor of 9.
  C) increase by a factor of 18.
  D) increase by a factor of 27.
  E) increase by a factor of 81.

Question 2

If 4.0 J of work are performed in stretching an ideal spring with a spring constant (force constant) of 2500 N/m, by what distance is the spring stretched?
 
  A) 3.2 cm
  B) 3.2 m
  C) 0.3 cm
  D) 5.7 m
  E) 5.7 cm
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Jsherida

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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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Capo

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Reply 2 on: Jul 29, 2018
Excellent

kalskdjl1212

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Reply 3 on: Yesterday
Wow, this really help

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