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(k = Boltzmann constant 1.38x10^-23 J/(K.particle), T = Kelvin temp) From the kinetic theory .. mean particle KE (½mv²) = (3/2) kT mv² = 3kT T = mv² / 3k .. .. v = escape vel .. (a) For Earth .. T = 3.32x10^-26 kg x (1.12x10^4 m/s)² / (3 x 1.38x10^-23) .. .. ►T = 1.0x10^5 K (b) try now yourself, using the formula we derived. It will be helpful.
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