As a negatively charged balloon approaches an aluminum can with a neutral charge, it induces a slight charge on the surface of the can. Negative
Positive
Neutral

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

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine