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astr301w20_hw6.pdf - Homework #6 – ASTR 301 Complete the...

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(over)Homework #6 – ASTR 301Complete the following problems on a separate sheet of paper. You must showallyour work toreceive full credit. Please be sure your answers are all clearly indicated. Qualitative questionsshould be answered using complete sentences in legible handwriting. (Total possible = 60 pts)1.(9pts) Thickness of Lithosphere:a.(6pts) Use the principle of hydrostatic equilibrium to calculate the thickness of thelithospheres of EarthandMars. You should make the assumption that the densityof each is independent of depth. The critical pressure of rock is 109N/m2.b.(3pts) Use your answer to suggest a possible explanation of why plate tectonicsoccur on Earth but not on Mars.2.(10pts) Pressure and scale heights:a.(6pts) Compare the scale heights of CO2in the atmospheres of Mars and Venus.Comment on the results. Assume TVenus= 700 K and TMars= 250 K.b.(4pts) At what altitude do you have to go up in the atmosphere of Venus in orderto reach a pressure of 1 atm using the scale height for CO2

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Term
Fall
Professor
Keller
Tags
Atmosphere, Planet, total internal power loss

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