Which example possesses mechanical potential energy?
a.
a taut guitar string
o
b. an oscillating pendulum
o
a roller coaster ride
o
d.
a child on a swing
o
e.
a speeding car

explanation:

crosscutting concepts have application across all domains of science. as such, they are a way of linking the different domains of science. they include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.

the answer is c. nacl