You use your finger to tightened a 3/4 10 unc screw. what's the circumference of the effort force?

what's the ideal mechanical advantage of the screw?

the input gear has 44 teeth, the idle gear has 22 teeth, and the output gear has 10 teeth. what's the gear ratio?

if the input gear is spinning at 30 rpm, how fast is the output gear spinning?

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k