The flow will be laminar if Reynold's number is less than 2000.
Use the Reynold's formula and rearrange to calculate velocity of water in the pipe.
Where, is velocity of the fluid, is the diameter of pipe, and is the kinematic viscosity i.e. for water at 288.7 K from Appendix.
So, velocity is:
The flow rate <em>Q</em>:
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Where A is the area of cross section of pipe.
The time taken to fill is:
Where V is the capacity of the tank.
The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.
Answer:
The pressure at the top of the step is 129.303 kilopascals.
Explanation:
From Hydrostatics we find that the pressure difference between extremes of the water column is defined by the following formula, which is a particular case of the Bernoulli's Principle ():
(1)
, - Total pressures at the bottom and at the top, measured in pascals.
- Density of the water, measured in kilograms per cubic meter.
- Height difference of the step, measured in meters.
If we know that , , and , then the pressure at the top of the step is:
The pressure at the top of the step is 129.303 kilopascals.
The answer is 45 i hope i could help