FLOW THROUGH TUBES OF UNEQUAL BORE. 307 



at a given rate, each particle of the liquid moves with 

 a definite velocity, that is, it passes onward through a 

 certain number of centimetres in every second ; if liquids 

 pass at the same rate through two tubes which differ in 

 width, a greater quantity of liquid will evidently pass 



FIG. 202. 



Ji the same time through the wider tube than through 

 "he narrower. Conversely, if the same quantity of 

 iquid is to pass during the same time through two 

 nibes of unequal width, the rate of motion, or velocity, 

 )f the liquid passing through the narrower tube will 



x 2 



