Alpha decay is nuclear decay in which a helium nucleus is emitted. If the helium nucleus has a mass of 6.65 x 10 2 kg and is given 9.00 MeV of kinetic energy, what is its velocity? 1.87e7 X Additional Materials Reading [1/2 Points] DETAILS PREVIOUS ANSWERS OSCOLPHYS2016 28.6.P.066. MY NOTES ASK YOUR TEACHER PRACTICE A Suppose you use an average of 540 KW-h of electric energy per month in your home. (a) How long (in years) would 1.00 g of mass converted to electric energy with an efficiency of 39.0% last you? 1484.018 years (b) How many homes could be supplied at the 540 KW.h per month rate for one year by the energy from the described mass conversion? 6.497e7 X homes