1) Wyznacz [latex]t_{2}[/latex] ze wzoru [latex]Q=mc(t_{2}-t_{1}) [/latex] gdzie m>0, c>0   2) Wyznacz m oraz t z podanego wzoru: [latex]Rcdot V=frac{5m-b}{n^{2}+t}[/latex]

1)     Q = mc(t₂ - t₁)          t₂ = ?         mct₂ - mct₁ = Q         mct₂ = Q + mct₁     /: mc                   Q + mct₁       t₂ = -----------------                      mc 2)                 5m-b          R · V = --------        /·(n²+t)                            n²+t           RV(n²+t) = 5m-b        5m-b = RV(n²+t)         5m = RV(n²+t) + b        /:5                    RV(n²+t)         m =  ---------------                         5                                               RV(n²+t) = 5m-b                                              RVn² + RVt = 5m-b                                                RVt = 5m-b - RVn²       /:RV                                                          5m-b-RVn²                                                 t = ------------------                                                              RV