What is the kinetic energy of the car ?

How manyatoms of mercury are in 1.4214e+1 ml sample

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

How is the atomic number of a nucleus changed by alpha decay