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Air is contained in a piston-cylinder assembly, initially at 40 lbf/in^2 and 600R. The air expands in a polytropic process with n=k=1.4 until the volume is doubled. Modeling the air as an ideal gas with constant specific heats, determine
a) The final temperature, in R, and pressure, in lbf/in^2, and
b) The work and heat transfer, each in btu per lb of air
a gas in an insulated tank is separated from an evacuated region by a membrane. the membrane is removed and the gas is
Calculate the maximum bending stress at mid-span, and, for the same section, locate the neutral axis. Neglect the weight of the beam
a shaft is subjected to a maximum load of 10 kn. it is designed to withstand a load of 15 kn. if the maximum load
a 1 kg ideal gas mixture at 1 atm has the following mass composition 15 o2 50 n2 35 co2. calculate using tabulated
given a tank with 60 cm of crude oil sg0.86 on top of 200 cm of water both at 50 degrees c. barometric atomospheric
determine the weight and cost of prepeg required to produce a hollow composite tube outside diameter 50mm wall
steam flows steadily through an adiabatic turbine. the inlet conditions of the steam are 10 mpa 450 ordmc and 80 ms and
What is the mass of the lead weight, if 100 J of heat is lost from the water after the weight falls a distance of 3 m.
A paper clip is made of wire 0.7 mm in diameter. If the original material from which the wire is made is a rod 25 mm in diameter, calculate the longitudinal engineering strain and true strain that the wire has undergone during processing.
water is pumped at a rate of 1.57 cfs from one large open tank into another through a 6 in diameter cast iron pipe 400
calculate the percentage volume change that would occur if a material were to be transformed from fcc to bcc. assume
a rigid tank contains 20 lbm of air at 20 psia and 70degf. more air is added until the pressure and temperature rise to
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