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A crane is being used to build a skyscraper. The engine can lift with 6900 W of power. How long will it take the crane
A crane is being used to build a skyscraper. The engine can lift with 6900 W of power. How long will it take the crane to lift a 2100 kg beam to a height of 120 m
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Complete Physics For Cambridge IGCSE RG
Authors: Stephen Pople
3rd Edition
019830871X, 978-0198308713
