a small 0.200kg package is released from rest at point A on a track that is one-quarter of a circle with radius 1.60 m. The package slides down the track and reaches point B where it slides on a level surface a distance of 3.00 m to point C. where it comes to rest , what is the change in the internal energy ?
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drive and expression for time period of a simple pendulums using dimension analysis
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