In a test to determine the three orifice coefficients under constant head of water of 1.8 m, it was observed that the diameter of the jet at the vena-contracta of a 60-mm-diameter orifice was found to be 48 mm. The weight of water collected in 100 sec was 1030o N. Determine the following: (a) The coefficient of velocity. (b) The power lost in the orifice in watts. (c) The horizontal distance (m) that the water jet hits the ground

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British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.