To get the maximum flight (Magnus effect),a ball must be thrown as:

$A$ horizontal pipe carries water in a streamlined flow. At a point along the pipe,where the cross-sectional area is $10 \text{ cm}^2$,the velocity of water is $1 \text{ ms}^{-1}$ and the pressure is $2000 \text{ Pa}$. What is the pressure of water at another point where the cross-sectional area is $5 \text{ cm}^2$ (in $Pa$)? [Density of water $= 1000 \text{ kgm}^{-3}$]

Write the limitations of Bernoulli's theorem.

Water is flowing through a horizontal pipe in streamline flow. At the narrowest part of the pipe,

Pressure head in Bernoulli's equation is

State Bernoulli's equation in words and write its mathematical formula.