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A shearing machine cuts flat sheet steel strips 100mm wide by 25mm thick and 6J of work are required per square mm cut. The flywheel RoG is 1m and has a speed of 130 rev/min at the start of each cut. Assuming that the energy required for cutting is supplied wholly by the flywheel, and its speed reduction is not to exceed 15% of the maximum speed, determine the mass of the flywheel and the torque that must be applied to the flywheel so that it can regain full speed in the 3.3 seconds available between cuts
a rankine cycle operates between pressure limits of 500 and 2 psia. the temperature of the steam entering the turbine
assuming a constant concentration gradient and constant number of atoms at the surface calculate the approximate
A wheel barrow is used to lift a 200 lb load. The length from the wheel axle to the center of the load is 2 ft. The length from the wheel and axle to the effort is 5 ft. 5. What is the ideal mechanical advantage of the system?
a positively cambered airfoil with a zero-lift angle of attack of ?3has a lift slope of 0.1 per degree.a. calculate the
consider the equation dydt y2y2-1 a- determine the equilibria and classify each one as asymptotically stable unstable
consider a gas-turbine power plant whose pressure ratio is 8. the isentropic efficiencies of the compressor and the
a hot dog can be considered to be a cylinder 12 cm long and 2 cm in diameter whose properties are rho 980 kgm3 cp 3.9
Determine the scalar component of the moment at point 0 about line OB and the reaction at 0 - average normal and shear stresses on plane BB.
calculate the transverse modulus of the peek/carbon fiber composite with 30% volume fraction by tow method. the modulus of peek is 3.8 GPa and the modulus of the carbon fiber is 400GPa. assume the reinforcing factor.
the 4 in diameter brass shaft shown is fixed at end a and fastened securely to a rigid horizontal member at end b.
If the ramp height is 2ft. Using the ada code, what is the allowable minimum length of the ramp?
certain system is able to exert an external force f according to the relationship.v velocityf 15000-500vn for v lt
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