6. {-11.05 Points] DETAILS SERCP11 5.5.P.020. 0/20 Submissions Used MY NOTES ASK YOU R TEACHER When a 2.90-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 2.34 cm. (a) What is the force constant of the spring? N/m H (b) If the 2.90-kg object is removed, how far will the spring stretch if a 1.4S-kg block is hung on it? cm H (c) How much work must an external agent do to stretch the same spring 9.00 cm from its unstretched position? J H Need Help? Submit