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Carbon 14 has a half-life of 5730 years. determine its decay constant. enter just a real number rounded to 5 decimal places. show how to do? Calculate the density of gaseous SF6 at 50.0°C and 650. torr.? Differentiate ((x^3)+1)e^(-4x)? How is periodicity of properties depend upon number of protons in an atom? Find all the the exact solutions to the following equation "sin(6x)=0" List those solutions which are in the interval [0,2pi) PLEASE HELP?