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A petroleum engineer estimates that the present production of 400,000 barrels of oil during this year from a group of 10 wells will decrease at the rate of 15% per year for years 2 through 10. Oil is estimated to be worth $25 per barrel. If the interest rate is 10% compounded annually, what is the equivalent present amount of the prospective future receipts from the wells?
propane is to be burned with 15.0 excess air. before entering the furnace the air is preheated from 32f to 575f. at
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oil passes through a 5-m long 25-cm diameter circular pipe with a mass flow rate of 75 kgh. the oil enters the pipe at
a very thin and long pipeline used for the transport of crude oil is buried in the earth such that its centerline is a
if the axial-flow pump is used to deliver 65000 galmin of 30oc water at 1200 rmin estimate a the impeller diameter b
a 090 square laminate was cured at elevated temperature. draw the shape of it when it is cooled down to room
estimate the weight savings if a typical automobile engine 100 kg is made of aluminum instead of cast iron. assume the
this question has popped up elsewhere on here but im a little dubious on some of the answers. anyway here goes any help
Evaluate the valve closure to achieve a water exit velocity
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What is the compressor's steady state response when a 30kg absorber with a stiffness of 1.3*10^5 N/m is added to the end of the beam? Please determine how to change the absorber to minimize the response of the beam.
a trailer truck enters a 2 percent uphill grade traveling at 72 kmh and reaches a speed of 108 kmh in 300 m. the cab
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