1. The problem statement, all variables and given/known data A car is designed to get its energy from a ro- tating flywheel with a radius of 2.19 m and a mass of 679 kg. Before a trip, the fly- wheel is attached to an electric motor, which brings the flywheel’s rotational speed up to 7310 rev/min. Find the kinetic energy stored in the fly- wheel. Answer in units of J. 2. Relevant equations KE = 1/2I[tex]\omega[/tex]2 I = mr2 3. The attempt at a solution given: r = 2.19 m m = 679 kg [tex]\omega[/tex] = 7310 rev/min = 765.50141 rad/s I = mr2 = (679 kg)(2.19 m)2 = 3256.5519 kgm2 KE = 1/2I[tex]\omega[/tex]2 = 1/2(3256.5519 kgm2)(765.50141 rad/s)2 = 954157346 J When I enter this answer, it says that it is incorrect? Could someone please let me know what I'm doing wrong? Thank you!