Apot is being used to boil off 1 kg of water. the specific energy required to cause the phase change is 2297 kj/kg. assuming the stovetop supplies 20 kj/s to the water and the liquid is at boiling temperature, how long will it take to vaporize half of the water? report your answer in seconds to the nearest whole number don't knou 2 attemots

Ascientist places 24 cells in a petri dish. she knows the cells grow at an exponential rate, doubling in number every hour. how long will it take (in hours) for there to be 1100 cells in the dish? time to 1100 cells: 5.51832530 hours how long will it take to reach 110 cells? time to 110 cells : 2.1963972 hours what is the average rate of change in the number of cells between 9 hours and 11 hours? average rate of change: cells per hour what is the instantaneous rate of change after 7 hours? instantaneous rate of change: cells per hour note: you can earn partial credit on this problem.