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A 20° steel spur pinion with 25 teeth and module 1.5 mm transmits 150 W to a 49 tooth cast iron gear. Pinion speed is 120 rev/min, gears are manufactured to a number 8 quality and installed with less than perfect rigidity, though contact is across the full face. Find the AGMA bending and contact stresses if F = 20 mm.
Derive an expression for the bounding energy Eo in terms of the equilibrium interionic separation ro and the constants D, and p using the following procedure
propane gas enters a continuous adiabatic heat exchanger at 40degc and 250 kpa and exits at 240degc superheated steam
a tapered structural steel column with a circular cross-section varies linearly from a radius of 25 mm to 15 mm over a
in an effort to reduce the mass of an aluminum bulkhead for a spacecraft a machinist drills an array of holes in the
molybdenum forms a substitutional solid solution with tungsten. calculate the concentration in weight percent of
during a gust of wind the blades of the windmill are given an angular acceleration of 0.2 rads2 where is measured in
How many times more ignition energy is required to achieve ignition of a fuel-air mixture at sea level with T = 298 K than at altitude of 6000 m where pressure P = 47,166 Pa and T = 248 K?
suppose the transfer function of a controlled system is given bygsks0.1s10.01s1design a controller to this system and
an object whose mass is 50 lb attached to a rope wound around a pulley. the radius of the pully is 3 in. if the mass
compute the shear strength in the pins connecting rods when a load of f equals 1500lb is carried. the pins have a
the steady state temperature distribution in a one-dimensional wall of thermal con- ductivity 50 wmk and thickness 50
heavy crude oil sg0.925 and nu1.0x10-4 m2s is pumped through a pipeline laid on flat ground. the line is made from
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