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A particular motor has the following specifications: no load speed = 5000 rpm, stall torque = 200mN-m, no load current = 0.25 A, rated operating = 2500 rpm, 100mN-m, 5A. Create the speed-torque curve, torque-current curve, power-torque curve, and determine the operating point (speed, torque) for maximum efficiency based on a 12V DC input voltage.
water flows from a storage tank through a horizontal 6-inch pipe cast iron and discharges water 20 degrees celsius into
A refrigerator with a COP of 3 removes 1.5 kW from the cold space at -9 °C while rejecting heat to the kitchen at 22 °C.
what is the magnitude of the impulse applied to the projectile by its weight from t 0 s to 3 s? given mass of
a water storage tank initially contains 100000 gal of water. the average daily usage is 10000 gal. if water is added to
Equation of an elastic curve, Given the equation of the elastic curve for a simply supported beam, how would you obtain the slope in the beam, since the equations are related?
A) A huge reservoir of air supplies a converging-diverging nozzle with throat and exit areas of 10 cm^2 and 25 cm^2 respectively. The reservoir pressure and temperature are 150 kPa and 20C. Determine the range of back pressure over which
a mass of 4.0 kg of r-134a at p1140 kpa and t1 20 cis contained in a gas tight frictionless piston cylinder device. the
a sprinkler essentially consists of a pipe ab mounted on a hollow shaft. the water comes in the pipe at o and goes out
a car tows a 400kg block up a 45 degree incline. the coefficients of static and kinetic friction are 0.6 and 0.4. the
a specimen of a 4340 steel alloy having a plane strain fracture toughness of 45 mpa m is exposed to a stress of 1000
conventional ceramics have a fracture toughness of about 5 while advanced ceramics may have 20. determine1 how larger
carbon dioxide is expanded in a steady flow frictionless process through a turbine from 0.9 mpa to 0.1 mpa. the initial
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