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Determine the minimum diameter of a solid shaft used to transmit 500 kw of power from a 3000-rpm motor so that the shear stress does not exceed 50 MPa
a bullet moving at a speed of 1000 fts has its speed reduced to 900 fts when it passes through a board. determine how
Determine the velocity of shearing along the shear plane and the velocity of sliding at the tool-chip interface and find the work done per minute in shearing the metal and against the friction.
a .75 m3 rigid tank initially contains water at 250degc 50 liquid and 50 vapor by volume. a valve at the
steam enters a long pipe as a saturated vapor at a pressure of 2 mpa. due to heat loss from the pipe to the
a converging diverging nozzle undergoes isentropic flow. stagnation pressure and stagnation temperature is 500 kpa and
a rod has a cross sectional area of 1 cm2. the material has the following strength characteristics beyond which the rod
a pressure vessel made of aluminum alloy 2024?t351 sy 325 mpa and kc 36 mpa?m12 is manufactured for a safety factor
the 6 x 12 in timber beam has been strengthened by bolting to it thenbsp5 x ? in steel reinforcement shown. the modulus
a pure jet engine propels an aircraft at 250 ms through air at 45 kpa and -13 degc. the inlet diameter of this engine
a refrigeration system using r-22 as the working fluid has condenser and evaporator pressures of 250 psi and 30 psi
A crane has a loading hook that is hanging in a steel wire. The allowable normal tensile stress in the wire gives an allowable force of 100,000 N. Estimate the safety factor that should be used.
a candidate velocity field is represented byv 9xy2 cosy i in the i direction - 3y3 j in the j directiona. is this a
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