Awoman with mass m is standing on a platform and holding onto a light rope attached to a hook in the ceiling. a second rope, also attached to the hook, is being held by a man with larger mass m on a second platform. the ropes are the same length, and the ropes are initially horizontal. the two people start from rest and swing toward each other. they meet at the lowest point of their swings, and grab onto one another, swinging upward until the ropes make an angle of 32.8° with the vertical. find the value of the ratio m m .

Steam is generated in a boiler of a cogeneration plant at 10 mpa and 450°c at a steady rate of 5 kg/s. in normal operation, steam expands in a turbine to a pressure of 0.5 mpa and is then routed to the process heater, where it supplies the process heat. steam leaves the process heater as a saturated liquid and is pumped to the boiler pressure. in this mode, no steam passes through a condenser, which operates at 20 kpa. (a) determine the power produced in the turbine and the rate at which process heat is supplied in this mode. (b) determine the power produced in the turbine and the rate of process heat supplied if only 60 percent of the steam is routed to the process heater and the remainder is expanded to the condenser pressure. (3.32 mw; 9.69 mw; 4.25 mw; 5.82 mw)

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Based on its type of chemical bond, which of the following has the highest boiling point? potassium chloride ethyl alcohol water ammonia