import 'package:flutter/material.dart';

class Calculate {
  static const num _gravity = 9.807;
  static const num _waterHeatCapacityBoil = 335200;// heat the water to 80 degrees with a heat capacity of 4190 Joule
  static const num _ironHeatCapacityGlow = 340000;// heat the iron to 680 degrees with a heat capacity of 500 Joule
  final num _v1, _v2, _h1, _h2, _m;

   Calculate( this._v1, this._v2, this. _h1, this._h2, this._m);


     calculateLWater() {

       num e = _calculateEKin() + _calculateEPot();
       num lWater = e/_waterHeatCapacityBoil;

       return lWater;
    }

    calculateKgIron(){
      num e = _calculateEKin() + _calculateEPot();
      num kgIron = e/_ironHeatCapacityGlow;

      return kgIron;
    }

    calculateJoule(){
      return _calculateEKin() + _calculateEPot();
    }

    _calculateEPot(){
       num h = _h2 - _h1;
       num ePot = _m * _gravity * h;
       return ePot;
    }

    _calculateEKin(){
      num v = _v2 - _v1;
      num eKin = (_m*v*v)/2;
      return eKin;
  }

}