VolumeVolume is a measure of regions in three-dimensional space. It is often quantified numerically using SI derived units (such as the cubic metre and litre) or by various imperial or US customary units (such as the gallon, quart, cubic inch). The definition of length and height (cubed) is interrelated with volume.
Specific weightThe specific weight, also known as the unit weight (symbol γ, the Greek letter gamma), is a volume-specific quantity defined as the weightW divided by the volumeV of a material: γ=WV.{\displaystyle \gamma ={\frac {W}{V}}\ .} Equivalently, it may also be formulated as the product of density, ρ, and gravity acceleration, g: γ=ρg.{\displaystyle \gamma = ho \,g.} Its unit of measurement in the International System of Units (SI) is the newton per cubic metre (N/m), expressed in terms of base units as kg⋅m⋅s. A commonly used value is the specific weight of water on Earth at 4 °C (39 °F), which is 9.807 kilonewtons per cubic metre or 62.43 pounds-force per cubic foot.
BuoyancyUpward force that opposes the weight of an object immersed in fluid The forces at work in buoyancy. The object floats at rest because the upward force of buoyancy is equal to the downward force of gravity. Buoyancy (/ˈbɔɪənsi, ˈbuːjənsi/), or upthrust, is the force exerted by a fluid opposing the weight of a partially or fully immersed object (which may also be a parcel of fluid).
MassMass is an intrinsic physical quantity of a body which in modern physics is generally defined as the strength of an object's gravitational attraction to other bodies. The unit of mass in the International System of Units (SI) is the kilogram (kg). Mass can also be understood as a measure of the energy content of a body (see E=mc²).
Mass concentration (chemistry)In chemistry, the mass concentrationρi (or γi) is defined as the mass of a constituent mi divided by the volume of the mixtureV. ρi=miV{\displaystyle ho _{i}={\frac {m_{i}}{V}}}For a pure chemical substance, the mass concentration equals its density (mass divided by volume); thus the mass concentration of a component in a mixture can be called the "density of a component in a mixture".
WeightIn science and engineering, the weight of an object is a quantity associated with the gravitational force exerted on the object by other objects in its environment, although there is some variation and debate as to the exact definition. Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object. Others define weight as a scalar quantity, the magnitude of the gravitational force.
OsmiumChemical element with atomic number 76 (Os)Ru↑Os↓Hsrhenium ← osmium → iridiumStandard temperature and pressureStandard temperature and pressure (STP), or standard conditions for temperature and pressure, are various standard sets of conditions for experimental measurements used to allow comparisons to be made between different sets of data. The most used standards are those of the International Union of Pure and Applied Chemistry (IUPAC) and the National Institute of Standards and Technology (NIST), although these are not universally accepted.PackagingPackaging is the science, art, and technology of enclosing or protecting products for distribution, storage, sale, and use. Packaging also refers to the process of designing, evaluating, and producing packages. Packaging can be described as a coordinated system of preparing goods for transport, warehousing, logistics, sale, and end use. Packaging contains, protects, preserves, transports, informs, and sells.
RhoHistoryArchaic local variants Diacritics and other symbolsDiacriticsάὰᾶἀἁᾱᾰϊᾳσ̌LigaturesϗϛNumerals (Attic)ϛ (6)ϟ (90)ϡ (900) Related topicsUse as scientific symbolsOrthographyRomanizationCyrillizationRho (; uppercase Ρ, lowercase ρ or ϱ; Greek: ρο or ρω) is the seventeenth letter of the Greek alphabet. In the system of Greek numerals it has a value of 100. It is derived from the Phoenician letterresh.
Greek languageIndo-European languageGreek (Modern Greek: ελληνικά, romanized:elliniká; Ancient Greek: ἑλληνική, romanized:hellēnikḗ) is an Indo-European language, constituting an independent Hellenic branch within the Indo-European language family.Dimensionless quantityDimensionless quantities, or quantities of dimension one, are quantities with no associated units of measurement. These may be ratios of quantities with the same physical units or ratios of dimensionally equal products with identical units. For instance, alcohol by volume (ABV) represents a volumetric ratio; its value remains independent of the specific units of volume used, such as in milliliters per milliliter (mL/mL).*As an Amazon Associate I earn from qualifying purchases.