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Author Question: When the midpoint of the face of the Sun appears to be on the horizon, where is the actual midpoint ... (Read 69 times)

Themember4

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on: Jul 28, 2018
When the midpoint of the face of the Sun appears to be on the horizon, where is the actual midpoint from the point of view of the observer?
 a. above the horizon at sunrise and below the horizon at sunset
  b. on the horizon
  c. below the horizon
  d. above the horizon

Question 2

The thermal conductivity of aluminum is 238 W / m C and of copper is 397 W / m C. A rod of each material is used as a heat conductor. If the rods have the same geometry and are used between the same temperature differences for the same time interval, what is the ratio of the heat transferred by the aluminum to the heat transferred by the copper?
 a. 0.599
  c. 0.359
  b. 1.67
  d. 2.78


cpetit11

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

A


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