Jupiter\'s moon Europa is covered in ice, and may have a liquid water ocean belo

Question

Jupiter's moon Europa is covered in ice, and may have a liquid water ocean below the forzen surface. Scientists think Europa could possibly harbor life in these subsurface occans. Europa is 5 AU from the Sun, and is smaller (R_Europa = 0.25 R_E) and less massive (M_Europa = 0.008 M_E) than Mars. Is your weight on Europa more of less than your weight on Mars? Justify your answer mathematically-you can use a ratio! Based on your findings in this lab, discuss at least tow of the challenges of manned exploration of Europa.

Explanation / Answer

here,

radius of Europa , r = 0.25 * re = 1.59 * 10^6 m

mass of Europa , m = 0.008 * Me = 4.784 * 10^22 kg

let the gravity on Europa be g'

g' = G * M /r^2

g' = 6.67 * 10^-11 * 4.784 * 10^22 /( 1.59 * 10^6 )^2

g' = 0.126 m/s^2

gravity on mars is 3.71 m/s^2

as the gravity on mars is more than the gravity on Europa

so, the weight on Mars is more than that on Europa

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