Question

+ -/1 points HRW6 8.CQ.02. A spring is initially stretched by 3.0 cm from its relaxed length. Below are four choices for changing the initial stretch. (a) to a stretch of 2.0 cm (b) to a compression of 2.0 cm (c) to a compression of 4.0 cm (d) to a stretch of 4.0 cm Rank the choices according to the changes they make in the elastic potential energy of the spring, most positive first, most negative last. (d), (a), (b), (c) (d) and (a) tie, (b) and (c) tie (d) and (c) tie, (a) and (b) tie (d), (a), (b). (c) (c), (b), (a), (d) all tie Submit Answer

Answer 1

Mi = 3 PE z ž kg = gu (9) ay = 2an Pła a £ Rx 4 2 qk OPER= of the PEL = 2 Rx4 = Q R OPEK '') ug = -4 cm PECE & hal6 = 4 x APE 3 - 4 a) ug 24 m. pEd = {K416 = LE DPEd 2x (b) y a-2am ha) 6 - D and ③ tie and ① z ② te