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A construction tower crane lifts a 10 ton bundle of steel beams 100 feet in the air in 30 seconds. A) How much work does the crane do? B) How many horsepower does the crane motor exert during the lift? C) If the crane engine is running at 2000 rpm, how much torque is the motor exerting?
a 120 lbm base jumper extreme parachutist leaps from el capitan in yosemite national park 3000 ft vertical drop head
yet another company you sure are popular is interested in hiring you to build something for their use. they want to
air within a piston-cylinder assembly initially at 12bar 327 degree celcius undergoes an isentropic expansion to
solution of oblique-angled triangle all threesides known two side at 7.5 in. and base at .3437 in. what are the angles ?
an engine block with a surface area measured to be 0.90m2 generates a power output of 55 kw with a net engine
Consider a cold air-standard Diesel cycle. Operating data at principal states in the cycle are given in the table below.For k=1.4 Cv=0.718kJ/(kg*k), and Cp= 1.005 kJ/(kg*K)
axial flow coolant pump for one lop pressurized nuclear reactor has 75 m head 6m3s flow rate 1440rpm 800 mm diameter
Find a cylindrical container that is large enough that it takes at least one minute to drain (you may have to create an opening at or near the bottom that gives the right behavior.
a heat pump is to be used to heat a building during the winter. the building is to be maintained at 24.2 celsiius at
a chicken has a mass of 2.2 kg and a specific heat of 3.54 kjkgc. the chickens are cooled by water that enters the heat
a horizontal force f pushes a 10 kg block up a fricitionless ramp with a circular contour the radius of curvature of
two streams of r-134a flow into a non-insulated diffuser. stream 1 enters at a pressure of 2 bar and 20?c state1 with a
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