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When a 5.00-kg object is hung vertically on a certain light spring that obeys Hooke's law, the spring stretches 2.00 cm. (a) If the 5.00−kg object is removed, how far will the spring stretch if a 1.50−kg block is hung on it? cm (b) How much work must an external agent do to stretch the same spring 4.00 cm from its unstretched position? J

When a 5.00-kg object is hung vertically on a certain light spring that obeys Hooke's law, the spring stretches 2.00 cm. (a) If the 5.00−kg object is removed, how far will the spring stretch if a 1.50−kg block is hung on it? cm (b) How much work must an external agent do to stretch the same spring 4.00 cm from its unstretched position? J

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When a 5.00-kg object is hung vertically on a certain light spring that obeys Hooke's law, the spring stretches 2.00 c m . (a) If the 5.00 − k g object is removed, how far will the spring stretch if a 1.50 − k g block is hung on it? ◻ c m (b) How much work must an external agent do to stretch the same spring 4.00 c m from its unstretched position? ◻ J

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