Why two rowing boats moving parallel to each other come closer (attract) to each other ?
According to Bernoulli's theorem, when velocity of liquid flow increases the pressure decreases. Therefore the pressure exerted by water in between the boats becomes less than the pressure of water outside the boats. Due to this pressure difference both the boats are attracted toward each other.
In old age arteries carrying blood in the human body become narrow resulting in an increase in the blood pressure. This follows from
Does it matter if one uses gauge instead of absolute pressures in applying Bernoulli’s equation? Explain.
Water is moving with a speed of $5.0\,m/s$ through a pipe of cross sectional area $4.0\,cm^2$ . The water gradually descends $10\,m$ as the pipe increase in area to $8.0\,cm^2$ . If the pressure at the upper level is $1.5 \times 10^5\,Pa$ , the pressure at lower level will be
Give reason why mercury does not wet glass.
An $ L-$ shaped glass tube is just immersed in flowing water such that its opening is pointing against flowing water. If the speed of water current is $v$, then