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The two ends of a cylindrical rod of nickel 120.00 mm long and 12.000 mm in diameter are maintained rigid. If the rod is initially at 50°C, to what temperature must it be cooled in order to have a 0.029-mm reduction in diameter? The values of Poisson's ratio and linear coefficient of expansion for nickel are 0.31 and 13.3 x 10-6 (°C)-1, respectively.
a linear motor is built utilizing neodymium permanent magnets supplying a magnetic field of .75t rails with an average
The diameter of the tube is 13 cm and its length is 60 m. Determine the overall heat transfer coefficient of this heat exchanger using (a) LMTD and (b) -NTU method.
1. What is a parting line or parting surface? 2. What is fluidity? 3. What type of shape modifications or allowances are generally incorporated into a casting pattern?
air in the atmosphere is composed of primarily nitrogen oxygen and argon. the mole percents of the compounds are as
a gas turbine cycle has two stages of compression with an intercooler between the stages. air enters the first stage at
a loaded railroad car with mass m is rolling at a constant speed v0 when it couples with a massless bumber system.
a machine with a rotating shaft has a total weight of 90 kg and is supported by springs. the damping constant for the
Why is it appropriate to take velocity measurements at several diameters downstream of the fan?
Calculate the static thrusts of the rocket and turbojet engine described in the figure. The thrust T is the force necessary to prevent horizontal movement of the engine. Both engines exhaust a mass flow of 40 kg/s.
a spherical balloon filled with heliumm is initially at 300 k and 100 kpa with a diameter of 5 cm. the balloon is
in a paint plant semiautomatic mixers are normally used. it takes 8 minutes for an operator to load a mixer with the
a sealed piston-cylinder assembly contains 3 lbm of water. the water is initially at p1 40 psia and t1 300degf. the
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