Q:  What is the escape velocity from the Earth?

                          2 G M
         v   =   sqrt ( ---------------- )
                            R


                        2  *  6.67 x 10^(-11)  *  5.98 x 10^(24) 
         v   =   sqrt ( ---------------------------------------- )
                                      6.38 x 10^6 


             =    11,200 m/s