2 strain gauges with a nominal resistance of 120 ohms (each)and a gauge factor of 2.10 are used in a half bridge (resistances R1 and R3 in fig. 8.5 in the text), with other unstrained resistors being 120 ohms. Supply voltage is 5 V. Calculate the micro strain if the output voltage is 20 mV.

Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?

Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um

Prove the equivalence between the two statements of the 2nd law of thermodynamics (i.e., a violation of one statement leads to the violatio the other statement)