Một tấm kim loại phẳng rất rộng(coi gần đúng là mặt phẳng vô hạn)

If the speed of a particle triples ,by what factor does its kinetic energy increase?

True or false: the revolution of the earth creates day and night as it rotates around the sun

The precision of a laboratory instrument is ± 0.05 g. the accepted value for your measurement is 7.92 g. which measurements are in the accepted range? check all that apply. 7.85 g 7.89 g 7.91 g 7.97 g 7.99 g