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A solid circular shell is made of steel that may be treated as perfectly elastoplastic. The shear stress yielding point for the steel is 165 MPa. The modulus of rigidity for the steel is 80 GPa. A torque is applied such that the shear stress reaches its yield point at 1/2 the radius of the shaft.Find the shear strain at the outer surface of the shell
if the isentropic efficiency of the compressor is 72 and the pressure ratio is 2.21 for an inlet pressure and
1 a rigid tank of propane c3h8 with a volume of 1.5 m3 is filled with 8 kg of gas at an initial temperature of 25degc.
Determine the work required to deflect a linear spring with a spring constant of 70 kN/m by 20 cm from its rest position.
Teresa measures the distance that a traverse system moves an object for a given computer-controlled input pulse. She makes 100 readings, and the mean value is 6.832 m with a sample standard deviation of 1.0 cm. The errors in the measurements are assu..
a 4-in. diameter disk shown weighs 10 lb. the disk is released at rest when theta30 degrees and rolls down the curved
Determine the heat transfer coefficients for the two cases, assuming the plate behaves as a spacewise isothermal object.
Consider an adiabatic mixing chamber operating at steady state into which steam enters with quality of 0.9. Water enters through a separate inlet at 300C. At the exit the temperature is 1500C and mass flow rate is 2 kg/s. The pressure in the mixing c..
Show that at room temperature ( T = 300 K) thermal stimulation dominates for frequencies well below 5 x 1012 Hz, whereas spontaneous emission dominates for frequencies well above 5 x 1012 Hz. Which mechanism dominates for visible light?
Assuming nucleate boiling conditions calculate the temperature of the bottom surface of the pan.
At what location s will the combined moment of the weights of the man and platform about point B be zero.
The surface radiative properties depend on the spe- cific nature of the applied coating. Compute and plot the steady-state temperature as a function of the emissivity for 0.05 s 1, with all other conditions remaining as prescribed. Repeat your calc..
water enters a wide flat channel of height 2h with a uniform velocity of u 5 ms. at the channel outlet the velocity
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