A 1.50-kg object is held 1.20 m above a relaxed massless, ver-tical spring with a force constant of 320 N/m. The object is dropped onto the spring. (a) How far does the object com-press the spring? (b) What If? Repeat part (a), but this time assume a constant air-resistance force of 0.700 N acts on the object during its motion. (c) What If? How far does the object compress the spring if the same experiment is per-formed on the Moon, where g5 1.63 m/s2 and air resistance is neglected?