Question

1)

Wyznacz ze wzoru gdzie m>0, c>0

2)

Wyznacz m oraz t z podanego wzoru:

Answer 1

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