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The mass of a spring-mass system is initially displaced by 10 cm from its unstressed position by applying a force of 25 N, which is equal to five times the weight of the mass. If the mass is released from this position, how long will the mass vibrate and at what distance will it stop from the unstressed position? Assume a coefficient of friction of 0.2.
Derive an equation to determine the extent of heat transfer enhancement due to wetting. Evaluate the enhancement for V = 10 m/s, D = 10 mm, Ts = 320 K, and Too = 300 K.
design a heat exchanger whose length should not exceed 5 m (length of the heat exchanger not the tube). The aim of this project is to increase your ability to solve real world problems which are characterized to be ill-posed.
An air compressor compresses air from 1 bar and 300 K to 5 bar and 540 K. The velocity at the inlet is 70 m/s and the velocity at the exit is 150 m/s. If To = 300 K and Po = 1bar.
a thick cylindrical sleeve when shrunk onto a hollow shaft of a different material had its internal diameter extended
a classroom is occupied by 55 students and one instructor each generating heat at a rate of 100 w. lighting is provided
steam enters a long pipe as a saturated vapor at a pressure of 2 mpa. due to heat loss from the pipe to the
a particle which moves in two-dimensional motion has coordinates given in inches by x t2 - 4t 20 and y 3 sin 2t
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 high-strength steel e 174 gpa tube having an outside diameter of 60 mm and a wall thickness of 4.5 mm is bent into a
An ideal compressor compresses 12 kg/min of air from 300K and 100 KPA isothermally to a final pressure of 600 KPA. Determine the power and heat transfer in kW.
The moment of inertia of three rotors A,B and C are respectively 0.3, 0.6 and 0.18 kg-m2 . The distance between A and B is 1.5 m and B and C is 1 m. The shaft is 70 mm in diameter and the modulus of rigidity for the shaft material is 84 x 109 N/m..
consider a piston-cylinder assembly containing 0.14 kg of air initially at a pressure of 350 kpa. heat is added during
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