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)
Answer:
F = 800N
the magnitude of the average force exerted on the wall by the ball is 800N
Explanation:
Applying the impulse-momentum equation;
Impulse = change in momentum
Ft = m∆v
F = (m∆v)/t
Where;
F = force
t = time
m = mass
∆v = v2 - v1 = change in velocity
Given;
m = 0.80 kg
t = 0.050 s
The ball strikes the wall horizontally with a speed of 25 m/s, and it bounces back with this same speed.
v2 = 25 m/s
v1 = -25 m/s
∆v = v2 - v1 = 25 - (-25) m/s = 25 +25 = 50 m/s
Substituting the values;
F = (m∆v)/t
F = (0.80×50)/0.05
F = 800N
the magnitude of the average force exerted on the wall by the ball is 800N
Answer:
F = 0
Explanation:
The net force acting on an object is given by the product of mass and acceleration. We know that acceleration is equal to the rate of change of velocity.
Net force,
F = ma
The skier is traveling at a constant velocity, it means there is no change in velocity i.e. acceleration is equal to 0. Hence, the force on her is 0.
Answer:
Period refers to the time for something to happen and is measured in seconds/cycle
Answer:
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Answer:
Explanation:
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