A roller coaster with a mass of 30 kg is sitting on the top of a hill that is 30 m tall. How much kinetic energy would the roller coaster have when it reaches the bottom of the hill
(n = 0)?

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