1. The problem statement, all variables and given/known data A 45.0-g object connected to a spring with a force constant of 40.0 N/m oscillates with an amplitude of 6.00 cm on a frictionless, horizontal surface. a) find the total energy of the system (mJ) 2. Relevant equations 1/2KA^2 3. The attempt at a solution Is the force constant the same as the spring constant 'K' here ? or will i need to determine 'K' by using Hooke's Law? f=-kx and then rearrange for -k=f/x? also does the A have to be converted into m or can i just plug in 6.00cm?