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What else can I help you with?
The amount of friction divided by the weight of an object forms a unitless number called the ... of friction?
coefficientThe amount of friction divided by the weight of an object forms a dimensionless number called the coefficient of friction.
What unit of measure does a psychrometer measure in?
Like in a Hygrometer to measure humidity you use percentage (%)
The fundamental density is the ratio of the mass of a substance to its volume this is known as what?
its density. note. density is often expressed as the ratio of the density of the substance to the density of water at standard temperature and pressure. This is known as the specific gravity of the substance. It is a dimensionless number so it has no units.
Are there different types of decibels?
Decibels (dB) mean a logarithmic unit of measurement that expresses the magnitude of a physical quantity relative to a specified or implied reference level. Since it expresses a ratio of two quantities with the same unit, it is a dimensionless unit. Decibel is Decibel!
What are quantam numbers?
from Max Planck's theory, quantum numbers are units of energy.
Can a quantity be dimensionless and have no units?
Yes, a dimensionless quantity is a quantity that does not have any physical dimensions or units. It is a pure number or ratio that represents a comparison between two quantities. Examples of dimensionless quantities include angles, ratios, and pure numbers like pi.
Why angle has a unit in spite it is dimensionless?
Angles are not dimensionless.
Is relative dielectric constant dimensionless?
Correct: it is a dimensionless number.
Does a dimensionless quantity have a unit?
No, a dimensionless quantity does not have a unit because it represents a pure number without any physical dimension. Examples of dimensionless quantities include ratios, proportions, and mathematical constants.
How do you prove dimensionless groups?
A dimensionless number has no units. The units of all variables that compose the dimensionless number (product or ratio) must cancel each other.
Which dimensionless quantity has unit?
If a quantity is "dimensionless", that means it has no units, and it's just a number.
Can a quantity have constant value and be dimensionless?
Yes. Conversion factors will generally be dimensionless constants.
what quantity has no units?
Pure numbers, such as counting numbers or mathematical constants, typically have no units attached to them. These quantities are dimensionless and represent a specific value without a particular physical unit of measurement.
What does 1 e 9 mean?
This list compares various sizes of positive numbers, including counts of things, dimensionless quantity and probabilities. ....
What dimension in 12 x 17?
None. 12 and 17 are both pure (dimensionless) numbers and so their product is also a pure number.
What is the importance of Dimensionless numbers?
Dimensionless numbers allow you to compare two systems that are vastly different by combining the parameters of interest. For example, the Reynolds number, Re = velocity * length / kinematic viscosity. If you are testing an airfoil with a particular Re, and you want to run a simulation on a scaled-down model (length is smaller), you could increase fluid velocity or lower kinematic viscosity (change fluids) or both to establish the same Re and ensure you are working under comparable circumstances.
Is specific weight is a dimensionless quantity?
energy/mass example: calories/gram
