एक ऊर्ध्वाधर आयताकार समतल सतह को पानी में इस तरह डुबोया जाता है कि उसके ऊपरी और निचले किनारे मुक्त सतह से क्रमशः 1.5 मीटर और 6.0 मीटर नीचे हों। मुक्त सतह से नीचे दाब केंद्र (center of pressure) की स्थिति कितनी दूरी पर होगी?

What will be the value of Chezy's constant 'C' if the velocity of flow 'V' is 1.506 m/s, bed slope is 1 in 2000 and hydraulic mean depth 'm' is 1.5 m?

Water is flowing through a rectangular channel. The width and depth of the channel are 830 cm and 140 cm, respectively. If the discharge through the channel is 600 cusecs, then the specific energy of flowing water and the value of minimum specific energy are ______ and ______, respectively.