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A mixing drum is accelerated from 50 to 160 rpm in a time of 20 s by a driving torque of 25 Nm. Determine (a) the angular acceleration, (b) the number of complete revolutions turned, (c) the work done, (d) the average power developed, (e) the maximum power developed.
a 20-lb package is tossed by a postal worker onto a sloping chute at a with an initial velocity of 5 fts. knowing that
Humid air is to be conditioned in a constant pressure process at 1 atm from 39C dry bulb and 50 percent relative humidity to 17C dry bulb and 10.8C wet bulb. The air is first passed over cooling coils to remove all the moisture necessary to achieve t..
a thermocouple place in the mouth of a pitot tube can be used to measure the stagnation temperature of the flow. such
consider a single crystal cylindrical specimen of iron oriented such that a tensile load is applied along a 010
three monkeys a b and c weighing 23 23 and 20 lb respectively are climbing up and down the rope suspended from d. at
A concentric cylinder viscometer may be formed by rotating the inner member of a pair of closely fitting cylinders (see Figure 1). For small clearances, a linear velocity profile may be assumed in the liquid filling the annular clearance gap. A visco..
at t0 bullet a is fired vertically with an initial velocity of 450 ms. after 3 seconds bullet b is fired upward with an
the mass of each pulley of the system is m and the mass of the suspended object a is ma. determine the force t
Using the tables for water, determine the specified property data at the indicated states. In each case, locate the state by hand on sketches of the p-v and T-v diagrams. At p=20 lbf/in^2, T=400°F, find v in ft^3/lb and u in Btu/lb.
What kind(s) of mechanism (include barker classification if applicable) might be best to use for the following applications? Converting a rotating gear motion into the intermittent motion of a second hand on a watch. Converting the motion of a motor ..
two kg of air is contained in a piston-cylinder assembly. the initial volume is 0.01m3 and pressure is 10 bar. the air
The rigid tank in the figure has a volume of 60 liters and initially contains a two-phase liquid vapor mixture of H2O at a pressure of 15 bars and a quality of 20%. As the tank contents are heated, a pressure-regulating valve keeps the pressure const..
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