The ball of mass m is guided along the vertical circular path r = 2rccosθ using the arm OA. The arm has a constant angular velocity θ = 2m. Determine the angle θ (≤) 45 degrees at which the ball starts to leave the surface of the semicylinder. Neglect friction and the size of the ball.

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

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

You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?