To reduce the drag coefficient and thus to improve the fuel efficiency of cars, the design of side rearview mirrors has changed drastically in recent decades from a simple circular plate to a streamlined shape. Determine the amount of fuel and money saved per year as a result of replacing a 13-cm-diameter flat mirror by one with a hemispherical back, as shown in the figure. Assume the car is driven 24,000 km a year at an average speed of 95 km/h. Take the density and price of gasoline to be 0.75 kg/L and $0.90/L, respectively; the heating value of gasoline to be 44,000 kJ/kg; and the overall efficiency of the engine to be 30 percent.

Weekly Notes #9 , March 28,2016 Monday onlyfortineas ex)Given : Learned : nEkPx.yfx.ytPK-X.y-yypx.y-covKAtaPx.yEHFindiaorgghioEuJxdyieEItoalxPxkD.ECxkiex.Jx2gValidforch.314nowrrebtion1uebtioshipAPylyl.Etp-eiy.Jywhenp-obCovk.ylEEECx-uxKy-nD2szh5formalHECxylthxjuydqinitionlsnathexpoessioneDGiveniwliMationslipy-axtbta-iveloesntchagextdirectionFindi-a-YoppositedirectionsMy.Jy.covG.yhpxyx.x@EGHuy.aanHggFoeknubOVar4H22y-a2jx2-Jy-1a4yeuarpoisae.bfysaTsnowmebtichc0covCx.y...