Can someone please help me on problem 9 ID webassign.net 2A - Sp 2018 Assgt 02 A
ID: 1578120 • Letter: C
Question
Can someone please help me on problem 9
ID webassign.net 2A - Sp 2018 Assgt 02 Another Version Assume There Are 100 Million Another Version Study | Guided Solutions Webassign.net 02A-Sp 2018 A (a) What is the ratio of the areas, A2/A1? (b) What is the ratio of the volumes, V2/Vi? Need Help?Readt Watch I 9. +-1 points SerCP11 1.P.OTT.Mi. My Notes Ask Your Te Assume there are 175 million passenger cars in the United States and te average fuel consumption is 20 mi/gal of gasoline. If the average distacetraveled by each car is 15,000 miyr, how much gasoline would be saved per year if average fuel consumption could be decreased to 25 mi/gal? gal/yr Need Help? Read lt L Master 10. 1/1 points | Previous Answers SercP11 1.CQ.009. My Notes Ask Your The left side of an equation has dimensions of length and the right side has dimensions of length squared. Can the equation be correct? HINT O Yes, because both sides involve the dimension of length. O No, because the equation is dimensionally inconsistent. Dimensional analysis can how that an equation is incorrect but it cannot show tha one is correct: A dimensional y n consistent equation can never be correct but a dimensionally consistent equation may still be incorrect for some other reason. Need Help? ReadltExplanation / Answer
initial mileage = 20 mi/gal
fuel consumed by each car per year = 15000/20 = 750 gal/yr
total fuel consumption per year = 175*10^6 * 750 = 1.3125 *10^11 gal/yr
improved mileage = 25ml/gal
fuel consumed by each car per year = 15000/25 = 600 gal/yr
total fuel consumption per year = 175*10^6 * 600 = 1.05*10^11 gal/yr
fuel saving = 1.3125*10^11 - 1.05*10^11= 0.263*10^11gal/yr
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