My professor yields this equation. d^2z/d0^2+1=0. This problem has to do with heat conduction. So a plane sheet -b<=x<=+b with a constant heat source Q. The equation that needs to be solved is k(d(adsbygoogle = window.adsbygoogle || []).push({}); ^{2}T/dx^{2}+Q=0. To change this equation to dimentionless, therefore lets say 0=x/b and z=(T-T(0))/(Qb^2/K). This gives d^{2}z/d0^2+1=0. I dont not understand where the 1 comes from can someone explain?

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# Could someone Please help with DIMENSIONLESS VARIABLES.

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