An m = 8.09 kg mass is suspended on a k = 473000 n/m spring. the mass oscillates up-and-down from the equilibrium position yeq = 0 according to y(t) = a sin(ωt + φ0). calculate the angular frequency ω of the oscillating mass. answer in units of s−1 . question 3, chap 15, sect 3. part 2 of 4 10 points at time t0 = 0 the mass happens to be at y0 = 4.05 cm and moving upward at velocity v0 = +4.12 m/s. (mind the units! ) calculate the amplitude a of the oscillating mass. answer in units of cm.