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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.
The top of a car has an area of 4 m2 and is at a temperature of 40 C. It’s speed is 40 mph. At what rate will it lose heat to surrounding air at 10 C if heat transfer coefficient is 400 W/m2C?
a 10-lb block is attached to an unstretched spring of constant k12lbin. the coefficients of static and kinetic friction
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If a Germanium wafer, which is uniformly doped with Gallium to a concentration of 5.55? 10^23 (m^3)^-1, has an electrical conductivity of 17,000 (?m)^-1 determine the mobility of the charge carriers in (m^2 / (V sec)). (Recall each gallium atom will ..
an important radionuclide produced in water-cooled nuclear reactors is 16n which has a half-life of 7.13 s and emits
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the terminal velocity of a carbon dioxide bubble in soda pop was found to be 1.25 fts. if the viscosity of the sugary
a container is supported by three cables that are attached to a ceiling as shown. determine the weight w of the
a velocity field is given by v 2xyi x2j. find the accelaration dvdt and use the euler equation to find the pressure
consider an ideal vapor-compression air conditioner with a cooling capacity of q dotc 4 tons whose evaporator is used
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