In the design test, a light sawtooth belt is wound around a sprocket (sawtooth wheel) with an average radius of r = 20 cm. The belt is horizontal and angular a = 15°, and both ends are fixed to the right vertical wall. Initially, the tension of the upper and lower belts is equal to T0 = 100 N. Find the tension T1 and T2 acting on the upper and lower belts when applying counterclockwise moment M = 10 N*m to the sprockets, respectively.

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater