using System; using L=Science.Physics.GeneralPhysics; namespace Serway.Chapter07 { /// /// Example13: Gas Consumed by a Compact Car /// A compact car has mass of 800 kg, and its efficiency is /// rated at 18%. (that is 18% of the available fuel energy /// is delivered to the wheels.) Find the amount of gasoline /// used to accelerate the car from rest to 27 m/s (60 mi/h). /// Use the fact that the energy equivalent of 1 gal of /// gasoline is 1.3 \times 10^8 J. /// answer : 0.013 gal /// public class Example13 { public Example13() { } private string result; public string Result { get{return result;} } public void Compute() { L.Mass m = new L.Mass(); m.kg = 800.0; L.Velocity v = new L.Velocity(); v.X = 27.0; L.KineticEnergy KE = new L.KineticEnergy(m,v); // 1 gal : 0.18*1.3*10^8 = x : KE.J; result+=Convert.ToString(KE.J/0.18/1.3/Math.Pow(10.0,8.0)); } } } //0.0124615384615385