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 Destruction  -Bubba- [11] 

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Wednesday, September 11th 2019, 7:09am

Heat can transfer in 3 way. Which?

 zAquisgran [11] 

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Wednesday, September 11th 2019, 8:26am

Why do cork and styrofoam have such a low density compared to other solids?

 Destruction  -Bubba- [11] 

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Wednesday, September 11th 2019, 8:39am

50 ton = 445 kN. 100kNm/445kN = 0.225m which is the correct answer.

Heat can transfer i 3 ways. Conduction. Convection and radiation. Answer to the second question.

 zAquisgran [11] 

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Wednesday, September 11th 2019, 11:16am

Quoted from "zAquisgran"

Why do cork and styrofoam have such a low density compared to other solids?


No answer received :-(

The very easy answer is:
In cork and polystyrene relatively much air is stored.
Cork or styrofoam bodies therefore occupy a large volume.

(Nerd stuff: Volume = V at a certain mass m.)

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