What is a sentence using dimensional analysis

Depending on whether or not you mean the sentence has to be written and solved in dimensional analysis, an example could be : 

- How many feet (ft) are there in 140 centimeters (cm)? 

Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. the winds blow from west to east in jet streams but the flow often shifts to the north and south. jet streams follow the boundaries between hot and cold air. the earth's rotation is responsible for the jet stream as well.