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Author Question: In an experiment to measure the thermal conductivity of a certain material, a slab of material 10.0 ... (Read 129 times)

tiara099

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on: Jul 29, 2018
In an experiment to measure the thermal conductivity of a certain material, a slab of material 10.0 mm thick separates a steam chamber from a block of ice with a square cross-section with dimensions 8.00 cm  8.00 cm.
 
  After 5.00 min of running the experiment, 64.0 g of ice have melted. What is the thermal conductivity of this material? The latent heat of fusion of water is 33.5  104 J/kg, the latent heat of vaporization of water is 2.256  106 J/kg, and both the ice and water are under 1.00 atm of pressure.
  A) 0.130 W/m  K
  B) 0.250 W/m  K
  C) 0.440 W/m  K
  D) 0.620 W/m  K
  E) 1.12 W/m  K

Question 2

A diatomic has a moment of inertia of 7.73  10-45 kg m2. What is its rotational energy in the quantum state characterized by l = 2? (h = 6.626  10-34 J  s, h = 1.055  10-34 J  s, 1 eV = 1.60  10-19 J)
 
  A) 87.1 eV B) 27.0 eV C) 72.2 eV D) 587 eV E) 22.7 eV
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bhavsar

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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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tiara099

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

hollysheppard095

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Reply 3 on: Yesterday
Gracias!

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