Engineering, 28.10.2019 21:31 manyah6189
An industrial sewing machine (having mass m) is mounted on springs (with stiffness k) and dampers (with damping coefficient b) to decrease the force transmitted to the floor. the input force acting on the sewing machine during operation is denoted by f(t), while the vertical motion of the machine is denoted by y(t). the sewing machine mass is 150 kg. suitable spring and damper values must be selected so that the vertical motion of the machine is sufficiently small
Answers: 2
Engineering, 04.07.2019 18:10, hadellolo8839
Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false
Answers: 3
Engineering, 04.07.2019 18:10, settasav9641
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
Engineering, 04.07.2019 19:10, gabrielaperezcz
Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?
Answers: 3
An industrial sewing machine (having mass m) is mounted on springs (with stiffness k) and dampers (w...
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