activities that can be shown on the topic FRICTION... fastt plz help
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compare two surfaces-one rough and another smooth and show rolling of a ball in both planes and explain it on basis of friction.
littledude:
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1990
Launched on 24 May 1990 in London, the first Human Development Report, opened with a simply stated premise: “People are the real wealth of a nation and human development is all about enlarging their choices.” Since then, Human Development Reports have inspired the world towards human progress through groundbreaking
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