Which is NOT an example of kinetic energy HELP QUICK WILL GIVE BRAINLIEST! options:

A- a skydiver as they decrease speed after opening their parachute.

B- an elevator moving up to the 3rd floor.

C- an arrow after it has hit the target and is at rest.

D- a skateboard rolling down a hill.

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.