Which of the following is not an assumption for an ideal fluid flow for which Bernoulli's principle is valid?

$A$ liquid is flowing in a horizontal pipe of non-uniform cross-section. Which of the following quantities may remain unchanged with respect to time?

Explain with the help of Bernoulli's principle why a spinning ball follows a curved path during flight.

Bernoulli's principle is based on the law of conservation of

$A$ horizontal pipe of non-uniform cross-section allows water to flow through it with a velocity $1 \ m/s$ when the pressure is $50 \ kPa$ at a point. If the velocity of flow has to be $2 \ m/s$ at some other point, the pressure at that point should be: (in $kPa$)

$A$ scent sprayer is based on