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120-lb cabinet is mounted on casters that can be locked to prevent their rotation. The coefficient of static friction between the floor and each caster is 0.30. Assuming that the casters at both A and B are locked, determine
(a) the force P required to move the cabinet to the right,
(b) the largest allowable value of h if the cabinet is not to tip over.
Some very large software projects involve writing millions of lines of code. Explain why the effort estimation models, such as COCOMO, might not work well when applied to very large systems.
Air enters an adiabatic compressor at 100 kPa and 27°C and leaves at 600kPa and 177°C at a rate of 1800kg/h. Determine the volume flow rate of the air at the inlet in m³/s. Determine the power input to the compressor.
Pure Lead (density = 10, 500 kg/m3, and kinematic viscosity = 1.617X10-7 m/sec.) is poured into a sand mold. The metal level in the pouring basin is 200 mm above the metal level in the mold, and the runner is circular with a 12.7 mm diameter.
A flat disk of outer radius b-125mm and inner radius a=25mm is shrink-fitted onto a shaft of radius 25.05mm. Both members are made of steel with E=200Gpa, v=0.3, and p=7.8 KN.s2/m4. Determine (a) the speed in rpm at which the interface pressure becom..
water is heated in a piston-cylinder arrangement where p const. from the saturated liquid state to the saturated vapor
Identify six consumer products that are likely to be controlled by safety-critical software systems.
air at 80 degrees fahrenheit and 80 percent relative humidity is cooled to 51 degrees fahrenheit at a constant pressure
a drilling operation is required to machine 82.0 in. diameter holes on a 20 in. diameter bolt cirile workpiece
a 30 g bullet is fired with a horizontal velocity of 450 ms through 3-kg block b and becomes embedded in carrier c
consider oxygen undergoing a steady-state steady-flow polytropic process n 1.2 from an initial temperature and
A wall bracket, as shown in Fig. 5.42, is subjected to a pull of P = 5 kN, at 60° to the vertical. The cross-section of bracket is rectangular having b = 3t . Determine the dimensions b and t if the stress in the material of the bracket is limited..
a couple m will be applied to a beam of rectangular cross section that is to be sawed from a log of circular cross
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