1. The problem statement, all variables and given/known data An electric scooter has a battery capable of supplying 140 Wh of energy. If friction forces and other losses account for 60.0% of the energy usage, what altitude change can a rider achieve when driving in hilly terrain, if the rider and scooter have a combined weight of 860 N? 2. Relevant equations Ubattery= 140(.6)/3600s = .015556W Ug= mgh 3. The attempt at a solution .015556 = 860h h = 1.8E-5 this is incorrect. can anyone point me in the right direction? thanks for your help!