Fluid friction occurs between layers within a fluidthat are moving relative to each other.

If straightened out, the top surface of the wing is longer than the bottom one. When air flows over the wing, it must travel faster over the top of the wing so there is less air pressure. higher air pressure on the bottom and lower air pressure on the top= LIFT. The higher the Airspeed the lower the air pressure is called Bernoulli's principle.

Hydrodynamics is the study of motion in liquids while aerodynamics is the study of motion in gases. But both of them are part of the study of fluid dynamics.

liquids that have low viscosity seem to flow quicker


example: vinegar and water

it would be the same for all

A pipette pump is a modern and more complicate pipette, having a little mechanical pump; the scope is to delivery small and precise volumes of liquids.

See the link below or catalogs of chemical laboratory accessories.

According to the law of conservation of mass, no it doesn't. It doesn't all stay in the glass, though; some of it escapes into the atmosphere as CO2 but if you were to capture that, you'd have all the mass you started with.

energy/mass

example: calories/gram

Here's the ideal gas law: PV = nRT If T is zero, then PV must be zero; assuming the volume is nonzero, then for PV to be zero the pressure must be zero. However, this is only true for an ideal gas. For a real gas other factors come into play at low temperatures, and they begin to deviate from the ideal gas law. Also, all real gases liquify above absolute zero, and liquids don't obey the ideal gas law at all.

Toothpaste is a Liquid there are mant diffrent toothpastes but they are liquids because you can sqeeze it out of a tube but if it was a solid you couldnt get it out of the tube if any further qestions please just ask thankyou x

Water is effectively an incompressible substance, so pressure does not affect its' volume. However, its boiling and freezing points are directly related to the external pressure. Water boils when its vapor pressure is equal to the external pressure (or the atmospheric pressure if it is contained in some uncovered pot). Greater external pressure requires higher temperature for water so as to have that value of vapor pressure for it to boil. This is how pressure affects water.

One example is a slurry such as those used to transport coal or by Syncor to transport petroleum coke. Another would be sedimentation of river water to form a colloid which transports mud or clay downstream.

Physically the momentum thickness may be conceived as transverse distance by which the boundary should be displaced to compensate for the reduction in momentum of the flowing fluid on account of boundary layer formation.

I believe the shorter the mean free path, the higher the density. Basically, the closer the molecules are, the more dens it is. That is why when you add pressure, the density goes up ... by this equation.

d = PM/RT

P=pressure

M=molar mass

R=gas constant

T=absolute temperature

Basically, the more pressure put on a gas, the closer it goes to being a liquid... which is denser. The bigger the gas (molar mass) the smaller the mean free path, the denser it is.

However, I do not know how to relate mean free path mathematically to density yet.

if the density of the fluid changes with respect to pressure is called compressible fluid

f the density of the fluid does not changes with respect to pressure is called

incompressible fluid

Factors Affecting Surface Air Temperature.

For any location on the earth's surface, the temperature is controlled by three overall factors:

1. Heat transport (often called "heat flux")

2. Heat storage (often called "heat capacity")

3. Water phase changes

Reduce errors by using a discharge coefficient to account for inaccuracies resulting from assuming plug flow and neglecting friction in the Bernoulli equation. Also ensure that the device is horizontal or replace the pressure term with "P + static head" if a horizontal device is not possible.

Source: Chemical Engineering Fluid Mechanics, Ron Darby, 2nd edition, pages 296 & 303.

A race car has a mass of 708 kg It starts from rest and travels 35 m in 3.2 s The car is uniformly accelerated during the entire time What net force is applied to it?

.

Total distance moved = Vi * t + ½ * at^2

It starts from rest

Initial velocity = 0

.

And travels 35 m

Distance = 35 m

.

in 3.2 s

time = 3.2 s

.

Total distance moved = Vi * t + ½ * at^2

35 = 0 + ½ * a *3.2^2

35 = ½ * a * 10.24

.

a = (35 * 2) ÷ 10.24

a = 6.836 m/s^2

.

Force = mass * acceleration

Mass = 708 kg

.

Force = 708 * 6.836=

Force = 4839.9 N

.

The ideal refrigerant has good thermodynamic properties, is noncorrosive, and safe. The desired thermodynamic properties are a boiling point somewhat below the target temperature, a high heat of vaporization, a moderate density in liquid form, a relatively high density in gaseous form, and a high critical temperature. Since boiling point and gas density are affected by pressure, refrigerants may be made more suitable for a particular application by choice of operating pressure. Corrosion properties are a matter of materials compatibility with the components used for the compressor, piping, evaporator, and condenser. Safety considerations include toxicity and flammability.

cause of the about of nice bits floating around

Mercury is better because 1) it doesn't evaporate 2) water has a density 13.6 times lower than mercury, so for some applications the size of the manometer would have to be very large.

Pascal is the s.i unit of upthrust

The tin will be turned sideways to pour the oil.

One of the holes will be above the level of the oil inside the tin.

This hole will allow air to flow into the tin to replace the out-flowing oil - this will maintainthe balance of the air-pressure in the tin.

If there was only one hole then the oil flowing out, and the air flowing in would have to share the hole and this would lead to the pressure in the tin varying as it would reduce when oil flowed out until that oil's volume had been replaced by air.

This is what leads to the inconsistent pouring of a liquid when a bottle is tilted so much that the liquid covers the opening. The flow stops and starts.