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a) A 10-mm-diameter Brinell hardness indenter produced an indentation 1.62 mm in diameter in a steel alloy when a load of 500 kg was used. Compute the HB of this material.
(b) What will be the diameter of an indentation to yield a hardness of 450 HB when a 500-kg load is used?
If the truck starts from rest when xD is zero, and moves forward with a constant acceleration of aD = 5 m/s2, determine the speed of the block at the instant xD = 3 m.
the diffusion constant do and activation energy q of c in bcc fe is 0.01 cm2sec and 80kjmol respectively. in fcc fe the
the manometer shown above in problem 1 above contains water and kerosene. with both tubes open to the atmosphere, the free surface elevations differ by H=20mm determine the elevation difference when a pressure of 98.0 Pa is applied to the right.
a long cylindrical rod of diameter 200 mm with thermal conductivity of 0.5 w m knbspexperienced uniform volumetric heat
a molten mixture of salt nano3-kno3 is used as the heat transfer fluid for application in a parabolic trough solar
In the idealized model attached shown, m = 15 kg, k = 135 N/m, and the viscous damping ratio is 0.15. Assume that an external harmonic force F(t) = 15 cos 4 t acts on the system with F0=15 N and forcing frequency of 4 rad/s.
a vertical hydraulic cylinder has a 125-mm diameter piston with hydraulic fluid inside the cylinder and an ambient
In the position shown, the angular velocity and the angular acceleration of the rod AB are 4 rad/sec and 6 rad/sec2, respectively, both counterclockwise. For this instant calculate the velocity and acceleration of collar A. ( AB = 600 mm)
a closed rigid tank whose volume is 1.5 m3 contains refrigerant 134a initially a two phase lipuid-vapor mixture at 10c.
a vertical piston-cylinder device initially contains 0.25 m3 of air at 600 kpa andnbsp300degc. a valve connected to the
Water enters a hydraulic turbine through a 30-cm-dia pipe. The pressure drop in the turbine is measured by a mercury manometer to be 1.2 m. For a combined turbine-generator efficiency of 83%, determine the net electric output. Disregard the effect..
If it is known that the value of the stress exponent n for this alloy is 8.2, compute the steady-state creep rate at 1300 K and a stress level of 89 MPa.
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