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Answered 2012-04-19 08:35:51

Its pressure decreases

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A nozzle is a device which increases the velocity of fluid by decreasing the Pressure but contrary to it Diffuser is a device that increases the Pressure of fluid at the expense of its velocity

That in a fluid, as velocity (kinetic energy) increases, the pressure (potential energy) decreases.

Bernoulli's principle is that when the velocity of a fluid (air) increases, its pressure decreases.

If we assume that the fluid we are referring to is that of an ideal fluid (incompressible and non-viscous) and is undergoing a laminar flow, we can model this problem by Bernoulli's principle and equation. Bernoulli's principle states that if the above conditions are met, the energy density of a fluid must be a constant, fixed value. This means that if the velocity of a fluid increases, other factors must decrease for the energy density of a fluid must be conserved. Bernoulli's Equation is the sum of the magnitude of the pressure, kinetic energy and potential energy of a fluid is equal to a constant. Therefore, if a velocity of a fluid increases, the kinetic energy of the fluid increases. As a result, the pressure or the potential energy must decrease. Both or only one may change; the result is dependent on the situation.

Momentum is proportional to velocity. More precisely:momentum = velocity x mass

It doesn't. But velocity does effect mass : as velocity increases, mass increases.

As temperature increases, so does molecular velocity, which also means volume increases.

Positive accelerating is when velocity increases. Velocity increases when speed in a certain direction increases.

Bernoulli's principle states that as the pressure of a fluid (gas or liquid) decreases, the velocity of that fluid increases.This is how airplanes get their lift and helicopters get their flight.

The length increases. velocity = distance/time If V increases the length increases also.

Because the fluid is allowed to expand in the nozzle it increases velocity to fill in the voids created by the shape of the nozzle. The convergent point of the nozzle acts like a bottleneck trying to slow the fluid and compress it into the reduced crosssection of the nozzle. As it leaves the minimum crosssection it expands into the divergent spaces of the nozzle increasing in velocity as it expands. ++_+ No: it gains velocity through the convergence but in the diverging section, trades velocity for pressure.

The Bernouli Principle states that sideward pressure exerted by a moving fluid decreases as the fluid's velocity increases.

velocity = speed of an object Basically, as speed increases, velocity increases...

Usually as a fluid moves through a pipe, it will warm up as kinetic energy and pressure is transformed to thermal energy via internal friction within the fluid and friction between the fluid and the walls. It should be noted however that as fluids enter constrictions and then expands out on the other side where pressure is much less, the temperature may actually drop while the fluid velocity increases . This phenomena is commonly observed in the functioning of refrigerators.

A velocity potential is a scalar function whose gradient is equal to the velocity of the fluid at that point. If a fluid is incompressible and has zero viscosity (an ideal fluid) its velocity as a function of position can always be described by a velocity potential. For a real fluid this is not generally possible.

Yes it rolls faster because the fluid in a can is dense and increases the velocity.

Kinetic Energy increases as velocity increases. Kinetic Energy = 1/2 * Mass * Velocity2

when speed increases, velocity changes.

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