sound and Inaudible sound
Classify the following into Contact forces and Non-contact forces.
A rolling ball comes to rest, bring the unlike poles of the magnets in contact, pen slips
off your hand, Lift a bucket of water, bring a straw rubbed with paper near the straw
which is not rubbed with paper, carrying a load in bullock cart.
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An electrical charge is created when electrons are transferred to or removed from an object. ... When electrons are removed from an object, it becomes positively charged.
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Which subject? 3333333
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