A strain gauge has a nominal resistance of 350 \Omega with a gauge factor of GF=1.8 and senses axial strain. The gauge is mounted on a 1.0 cm^2 aluminum rod (Modulus = 70 GPa). Output voltage is measured as E_o = 1.0 mV and the circuit is supplied at E_i = 5.00V. Solve: Assuming the bridge is balanced at no load, calculate the applied load, assuming uniaxial tension. Enter the load in N. You can assume that the gauge is arranged such that a uniaxial load will produce a positive change in voltage.

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1

Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg • k, determine for the air the amount of entropy produced, in kj/k