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Ethanol blended with gasoline can be used to power a 'flex-fueled"car. One particular blend that is gaining in popularity is E85, which is 85% ethanol and 15% gasoline. E85 is 80% cleaner burning than gasoline alone, and it reduces our dependency on foreign oil. But a flex -fueled car costs $1,000 more than a conventional gasoline- fueled car. Additionally, E85 fuel gets 10% less mikes per gallon than a conventional automobile. Consider 100% gasoline fueled car that average about 27 miles per gallon. If either car will be driven 81,000 miles before being traded in, how much will the E85 fuel have to cost (per gallon) to make the flex-fueled car as economically attractive as conventional gasoline-fueled car? Gasoline costs $2.89 per gasoline. Work this problem without considering the time value of money.
a disk has a mass of 4kg and a radius of 90mm it is at rest when it is placed in contact with the belt which moves with
the entire assembly is placed in an environment whose temperature is 200c. determine the volume of chamber 1 when thermodynamic equillibrium has been estabilished.
refrigerant -134a at 800kPa and 25 C is throttled to a temperature of -20C. determine the pressure and the internal energy of the refrigerant at the final state.
Use a suitable method to predict the racS,T variation along these plates when a= e= 0.1, 0.5, and 0.8 and emissions and reflections are diffuse.
(a) Determine the blade angles at leading and trailing edges of both the rotor and stator at the mean radii, (b) Calculate the mass flow rate and the power required for each stage.
Find the diameter of a pipe to convey the superheated steam flowing into the mixing process if the speed of the steam is 20m/s and also ascertain the condition of the resulting mixture.
a 250-kg crate b is suspended from a cable attached to a 20-kg trolley a which rides on an inclined i-beam as shown.
water flows as two free jets from the tee attached to the pipe shown below. thenbspexit speed is 15 ms. if viscous
Complex loading (bending and compression), A steel chimney is 28m high, 1.4m external diameter, and 20mm thick. It is rigidly fixed at the base and is acted upon by a horizontal wind pressure of intensity 1.
How do I find the factor of safety using the distortion energy failure theory?
Average pressure at end of stroke? Upsetting force required at the end of the stroke? If friction is neglected, what is the amount of upsetting force?
Calculate the minimal round-trip time delay for a radio communications link between Los Angeles and the satellite.
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