Two spheres having masses m and 2m and radii r and 3r, respectively, are released from rest when the distance between their centers is 12r. how fast will each sphere be moving when they collide? assume that the two spheres interact only with each other.

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)

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.