Learning is to perception as is to ___?

Aphysical change is a change in the size, shape,, or stafe of matter true or false

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two