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Calculate the current Io in the circuit of Fig. 4.69. What value of input voltage is necessary to make equal to 5 amps?
Shown is the cross section of a molded flat-belt pulley. Determine its mass moment of inertia and its radius of gyration with respect to the axis AA9. (The density of brass is 8650 kg/m3 and the density of the fiber-reinforced polycarbonate used i..
sketch a preliminary layout for the following heat exchanger systems. on the layout sketch indicate pipe work manifolds
The 60-W fan of a central heating system is to circulate air through the ducts. The analysis of the flow shows that the fan needs to raise the pressure of air by 50 Pa to maintain flow. The fan is located in a horizontal flow section whose diameter i..
Determine the savings associated with application of a 10-mm-thick coating of urethane insulation (k = 0.026 W/m · K) to the outer surface of the pipe.
a 12-mm diameter jet of water discharges vertically into the atmosphere. due to surface tension the pressure inside the
an equiangular strain gage rosette is mounted on a free and unloaded surface of a part made of steel. when loaded the
A piston cylinder contains 0.25 kg of water initially at 1.4 bar and 0.06 m^3. If 250 kj of heat is transferred to the water while keeping pressure constant:
Calculate the average square distance between the particles and plot its ratio to the time step . This is the diffusion/dispersion coefficient.
A new cast iron pipe is 5 km long and 15 mm diameter is used to convey water at a rate of 0.0150m3s-1. Given the absolute roughness of the pipe is 0.26 mm, density of water is 998 kg/m3 and dynamic viscosity of water is 1.14 × 10-3 kgm 1s-1.
The roof is supported by cables. If the cables exert FAB = 100N and FAC = 120N on the wall hook at A, determine the magnitude of the resultant force acting at A.
A periodic function f(t)is of period 10 defined by f(t)=N+t2, 0
A vertical frictionless piston-cylinder device contains nitrogen at 125 kPa. The outside atmospheric pressure is 100kPa. The piston diameter is 25 cm. The height difference between the two columns of mercury manometer (in cm), connected to the side o..
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