Ethanol ia a common laboratory solvent and has a density of 0.789 g/ml. what is the mass, in grams, of 123 ml of ethanol?

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d