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In gantry crane ,there are are two motors one for horizontal motion , i.e. 400kg weight is to be moved 6m with 100m/min.Another motor is to lift 1500 kg weight vertically of 0.6m with speed 20m/min. power is transmitted through rack and pinion. For selecting the servomotor , what is the torque required calculation for each motor with considering the friction?
a 0.1-m3 rigid tank contains steam initially at 500 kpa and 200 c. if the temperature in the tank is lowered to 50 c
The motion of a particle in defined by the relation x = t3 - 15 t2 - 20, where ‘x' is expressed in metres and ‘t' in seconds. Determine the acceleration of the particle at t = 3 seconds.
suppose that the us military is considering a new lifetime regulation on their helicopter rotor blades. instead of
a piston-cylinder device initially contains 1.2 kg of steam with a volume of 0.2 m3. the mass of the piston is such
consider a roof of a house of thickness l 20 cm thermal conductivity k 1 wm k and emittance of the external surface
(a) Sketch the cycle on a p V diagram. (b) Calculate the net work for the cycle, in kJ. (c) Calculate the heat transfer for process 2 3, in kJ. (d) Calculate the heat transfer for process 3 1, in kJ. (e) Is this a power cycle or a refrigeration cy..
two 10 inch gears are to be mounted 12 inches apart and have a velocity ratio of 51. find the pitch diameters and the
a frictionless piston-cylinder device fitted with stops above the piston contains 1.2 kg of air at 200degc and 700 kpa.
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 beam of rectangular cross section is 200 mm deep 100 mm wide and 3 m long. it is simply supported at each end. it has
a steam power plant operates on a rankine cycle between pressure limits of 0.08 bar and 80 bar. the heat added by
Find the differential equation governing the motion of the diver while she is in contact with the board. Neglect any rotational inertia and what is the peak de?ection of the diving board?
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