Answer:
Net head = 380cm
bhp = 17.710kW
Explanation:
Angular velocity of centrifugal pump:
Normal velocity component at outlet of pump:
Tangential velocity component at exit of the pump:
Normal velocity component at inlet of pump:
Tangential velocity component at inlet of the pump:
Equivalent head in centimetre of water column:
Break horse power:
![bhp=rho_{water} gHV=rho_{water} g[(\frac{w}{g})(r_{2}V_{2,t}-r_{1}V_{1,t})]V\\\\bhp=(998)(9.81)[(\frac{78.54}{9.81})((0.24)(1.643)-(0.12)(0))](0.573)=17710W=17.710kW](https://tex.z-dn.net/?f=bhp%3Drho_%7Bwater%7D%20gHV%3Drho_%7Bwater%7D%20g%5B%28%5Cfrac%7Bw%7D%7Bg%7D%29%28r_%7B2%7DV_%7B2%2Ct%7D-r_%7B1%7DV_%7B1%2Ct%7D%29%5DV%5C%5C%5C%5Cbhp%3D%28998%29%289.81%29%5B%28%5Cfrac%7B78.54%7D%7B9.81%7D%29%28%280.24%29%281.643%29-%280.12%29%280%29%29%5D%280.573%29%3D17710W%3D17.710kW)
Force decreases as distance increases
<span>Correct pairs:
a man jogging in the park --> motion energy (the energy is the kinetic energy of the man, moving with speed v)
a fully charged camera battery --> electric potential energy (the battery is fully charged, so it can deliver electrical energy when the camera is turned on)
a stove burner that’s turned on --> radiant energy (the stove burner emits energy by radiation)
an apple on a tree --> gravitational potential energy (when the apple is on the tree, it has gravitational potential energy equal to U=mgh, where m is the apple's mass and h its height from the ground)
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Answer:
A control variable in scientific experimentation is an experimental element which is constant and unchanged throughout the course of the investigation.
Explanation:
