Why do the testes need to have a lower temperature than the rest of the body? if you want points then here you go i will mark brainliest to the person who answer this question right​
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What is the final velocity of the initial velocity of 25 and -50?

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Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.