You use your finger to tighten 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 ideal gear has 22 teeth, and the output gear has 10 teeth. what's the ratio gear?

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

Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?