A0.440-kg object attached to a spring with a force constant of 8.00 n/m vibrates in simple harmonic motion with an amplitude of 12.6 cm. (assume the position of the object is at the origin at t = 0.) (a) calculate the maximum value of its speed. cm/s (b) calculate the maximum value of its acceleration. cm/s2 (c) calculate the value of its speed when the object is 8.60 cm from the equilibrium position. cm/s (d) calculate the value of its acceleration when the object is 8.60 cm from the equilibrium position. cm/s2 (e) calculate the tim