13. A wheel and axle have a diameter of 20” and 2.5” respectively. If an effort force of 120 lbs. is applied to the wheel what is the resistance force at the axle?
A) 960 lbs.
B) 50 lbs.
C) 2400 lbs.
D) None of the above

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.

Wiy doeres rere okhn a pump whon working betwon the same pressure range?