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Author Question: On his honeymoon, James Joule attempted to explore the relationships between various forms of energy ... (Read 53 times)

NguyenJ

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on: Jul 29, 2018
On his honeymoon, James Joule attempted to explore the relationships between various forms of energy by measuring the rise of temperature of water which had fallen down a waterfall on Mount Blanc.
 
  What maximum temperature rise would one expect for a waterfall with a vertical drop of 20 m? The specific heat of water is 4186 J/kg  K.
  A) 0.047 C B) 0.064 C C) 0.053 C D) 0.071 C

Question 2

A 3.0-cm tall statue is 48 cm in front of a convex lens having a focal length of magnitude 20 cm.
 
  (a) Is the image of the statue real or virtual?
  (b) How far is the image from the lens?
  (c) Is the image upright or inverted?
  (d) How tall is the image?
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cpetit11

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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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NguyenJ

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Reply 2 on: Jul 29, 2018
:D TYSM

frankwu0507

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Reply 3 on: Yesterday
Excellent

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