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An electronic control system for an automobile engine is to be mounted on top of the fender inside the engine compartment. It is desirable to isolate the module from the vibration induced in the car by road and engine vibration. Design an isolator (i.e. pick stiffness k) if the mass of the module is 3 kg and the vibration of the fender is y(t)=.01sin(35t). It is desired to keep the displacement of the module less than 0.005 m at all times. Once the stiffness value of the isolator is chosen, calculate the magnitude of the force transmitted to the module through the isolator.
a system consisting of 3 lb of water vapor in a piston- cylinder assembly initially at 350degf and a volume of 71.7 ft3
determine the instantaneous rate of heat transfer from a 1.5-cm-diameter ball bearing with a surface temperature of 150
in a tensile test the starting gage length 100 mm and the cross-sectional area 150 mm2. during testing the following
superheated steam at 500 celsius and 3 mpa enters a steady state turbine with a mass flow rate of 500 kgs. the steam
a piston of diameter 100 mm moves inside a cylinder of 100.1 mm diameter. find the percent decrease in force necessary
The yield strength for an alloy that has an average grain diameter of 4.4 x 10-2 mm is 115 MPa. At a grain diameter of 7.1 x 10-3 mm, the yield strength increases to 258 MPa. At what grain diameter, in mm, will the yield strength be 237 MPa?
Determine the number of pounds of helium within it if its volume = 68,000 ft^3 and the temperature and pressure are 80 F and 14.2 psia.
carbon monoxide and water vapor react to form carbon dioxide and hydrogen. water at 25c is fed to the reactor 50 in
a spring loaded device imparts an initial vertical velocity of 50 ms to a 0.15 kg ball. the drag force on the ball is
in a crank or slotted lever quick mechanism the distance between the fixed centre is 150 mm and driving crank is 75 mm. determine the ration of the time taken of cutting & return strake .
an air-standard otto cycle operates with 520 degrees r and 14.7 psia at the beginning of the compression portion of the
using the van der waals equation of state derive an expression that gives the isothermal change of internal energy with
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