Which is a cationic detergent having four organic groups attached to a nitrogen atom and used to sanitize utensils? select one:

a. propionic acid
b. quaternary ammonium compound
c. ethylene oxide
d. methylene blue

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