Recent content by eversor

Thanks a lot for your help!

What is an acceptable range for which Bernoulli's equation is valid?

Does Bernoulli equation work only in proximity of Earth's surface?

If my equation is correct as it is written, how do you explain that patm decreases with height? I mean if (density*v^2)/2 = density*g*h because v^2= 2*g*h the equation above for large values of h is clearly wrong! By pressure represented as a vector in books I mean that it is shown as an arrow...

Reviewing what I wrote, I am thinking that I should include patm in the first of the three members. That would explain everything because all the patm cancel out. Another question.. Pressure is a scalar but force is a vector.. Why? Also, Why is pressure always represented as a vector on physics...

Hi Alphysicist, Thanks a lot for your precious suggestion. If I interpret it well, Pressure pump = patm + (density*v^2)/2 = patm + density*g*h where for both patm is approximately equal to 1 atm. What if h were very large? would this equation still hold? I know that the atmosferic...

A fountain shoots a vertical jet of water at a rate of 0.33 L/s to a height of 1.6m. What is the initial speed of the jet and what is the radius of the hole out of which the jet passes? What pressure must the pump of the fountain supply? (Assuming that it sits just below the emerging jet). At...