A)Levers work because some forces produce a

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Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?

An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.