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OK Melllyy it's been a while, let me see... A star drops onto the main sequence as it is forming. Where it drops on depends on how massive it is. The higher up the main sequence, the bigger the star. The star's evolution then follows a path dependent on how massive it is. Those stars that are...

Hi Cade, you are my first post. I saw your post and had to join up. OK so R=p(L/A) If each resistor has the same length (say L=x) then: and A=(pi)r^2 and r=d/2 R1 = p(x/(pi)r1^2) and R2 = p(x/(pi)r2^2) OR R1 = p(4x/(pi)d1^2) and R2 = p(4x/(pi)d2^2) Therefore when you...