When is potential energy transformed into kinetic energy.
a. when an object at rest is lifted to a higher elevation.
b. when an object at rest remains at rest.
c. when an object at rest is put into motion.
d. when an object in motion is stopped and put at rest.

.

C. when an object at rest is put into motion.

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.