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Author Question: The thermal conductivity of concrete is 0.80 W/m-C and the thermal conductivity of wood is 0.10 ... (Read 95 times)

Zoey63294

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on: Jul 27, 2018
The thermal conductivity of concrete is 0.80 W/m-C and the thermal conductivity of wood is 0.10 W/m-C.
 
  How thick would a solid concrete wall have to be in order to have the same rate of flow through it as an 8.0 cm thick wall made of solid wood? (Assume both walls have the same surface area.)

Question 2

A satellite is in a low circular orbit about the Earth (i.e., it just skims the surface of the Earth). How long does it take to make one revolution around the Earth?
 
  What will be an ideal response?


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macybarnes

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Reply #1 on: Jul 27, 2018
Answer to Question 1

64. cm

Answer to Question 2

87 min


Zoey63294

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Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


macybarnes

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Reply #3 on: Jul 27, 2018
Great! Please up vote :D


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