
The values of K for given velocities
 u (m/sec) 	 K (sec-1) 
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 0.1 	 	 0.316
 0.3 	 	 0.865
 0.5 	 	 1.550
 0.75 	 	 1.943
 0.95 	 	 2.249
 1.15 	 	 2.003