Which of the mechanisms can be used to: a. Increase torque and decrease speed?

b. Increase speed and decrease torque?

c. Keep constant speed and torque?

d. Transmit rotary movement at a 90° angle?

e. Reverse the flow of power?

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?