It takes a truck 3.56 seconds to slow down from 112km/h to 87.4km/h what is it's average acceleration?

a = (v2 -v1) / t   v2-v1 =  (87.4 - 112) = -24.6 km/h  = -24.6/3.6 m/s = -6.833 m/s a = -6.8333 / 3.56 = -1.919 m/s2  

c.is a substance that requires a small amount of energy per gram to raise its temperature; has strong cohesive forces between molecules.

explanation:

a colorless, transparent, odorless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

are there answer choices to this question? this seems like a question where you have options to choose from.