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Shown is the cross section of an idler roller. Determine its mass moment of inertia and its radius of gyration with respect to the axis AA9. (The specific weight of bronze is 0.310 lb/in3 ; of aluminum, 0.100 lb/in3 ; and of neoprene, 0.0452 lb/in3 .)
The main elevator A of the CN Tower in Toronto rises about 349 m and for most of its run has a constant speed of 22 km/h. Assume that both the acceleration and deceleration have a constant magnitude of g/3 and determine the time duration t of the ..
Two long copper rods of diameter D = 10 mm are sol- dered together end to end, with solder having a melt- ing point of 650°C. The rods are in air at 25°C with a convection coefficient of 10 W/m2 · K. What is the minimum power input needed to effec..
a closed system consisting of 14.5 lb of air undergoes a polytropic process from p1 80 lbfin2 v1 4 ft3lb to a final
on average in the u.s. carson light trucks vans and slpvs are driven about 15000 exiles per year. the average fuel
a non-uniform steady incompressible flow is observed to have a velocity of 15ms at a point where the cross-sectional
the space between two 17-in.-long concentric cylinders is filled with glycerin viscosity 8.5 times 10-3 lbmiddotsft2.
A Wilson-Hartnell governor is illustrated in given Figure. In this, the balls are associated by two springs that are known as main springs. The main springs are symmetrically arranged on either side of the sleeve.
0.7 kg of Refrigerant 134a undergoes a constant pressure process at 140 kPaabs from T=20 oC to saturated vaport. Determine the work transport of energy for the process.
Liquid ethanol (C2H5OH) at 778F, 1 atm enters a combustion chamber operating at steady state and burns completely with dry air entering at 3408F, 1 atm. The fuel flow rate is 50 lb/s, and the equivalence ratio is 0.8. Products of
refrigerant-134a enters the expansion valve of a refrigeration system at 160psia as a saturated liquid and leaves at
a 32.2 lb object is dropped from a 100 feet building. determine the velocity and the kinetic energy at the 50 feet
If the crest of a hill has a radius of curvature i = 200ft, determine the maximum constant speed at which the car can travel over it without leaving the surface of the road. Neglect the size of the car in the calculation. The car has a weight of 3500..
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