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A mass of 500 kg is mounted on supports having a total stiffness of 100 kN/m and which provides viscous damping, the damping ratio being 0.4. The mass is constrained to move vertically and is subjected to a vertical damping force of the type Fcosθt. Determine the frequency at which resonance will occur and the maximum allowable value of ‘F' if the amplitude at resonance is to be restricted to 5 mm.
A bar, 40 cm. long, originally has a temperature of 0 C, throughout its length. At time t=0, the temperature at one end (x=0) is raised to 50 and that at the other is raised to 100. Find the resulting temperature function r(x,t).
a 50 kg copper block initially at 350 c is quenched in a closed rigid insulated tank containing 120 l of liquid water
The convection coefficient is determined. The following experimental arrangement uses the procedure to determine the convection coefficient for gas flow normal to a surface.
a centrifugal pump can provide a 20-m head rise at 75 revmin. if the rotation speed increases to 90 revmin what will be
the bell-crank mechanism consists of a bent rod and an attached 5-kg weight. the rod has negligible weight and the mass
1. What are the factors considered while selecting a boiler? 2. What are the various boiler mountings? 3. Define vacuum efficiency of condenser? 4. What is the effect of friction on the flow through a steam nozzle?
the air inside a chamber at 54 c is heated convectively with heat transfer coefficient of 35 wm2k by a 0.29-m thick
according to data provided by motor trend the 2011 chevrolet silverado diesel hd is powered by an 8 cylinder diesel
Design a circuit with a 4-bit input representing the binary number A3A2A1A0. The output should be 1 if the input value is divisible by 3. Assume that the circuit is to be used only for the digits 0 through 9 (thus, values for 10 to 15 can be don't..
a 2.5 pound block b is moving with a velocity v06 fts as it hits a 1.5 pound sphere a which is at rest hanging from a
One-half kilogram of pure water is heated in a frictionless piston-cylinder device, at a constant pressure of 200 kPa, from an initial temperature of 20oC to a final temperature of 400oC.
air in a piston-cylinder device has 400 degrees f 1000 kpa with a volume of 3.5 ft3. combustion heats it to 1500 k in a
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