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Square metre. The square metre ( international spelling as used by the International Bureau of Weights and Measures) or square meter ( American spelling) is the unit of area in the International System of Units (SI) with symbol m2. [1] It is the area of a square with sides one metre in length. Adding and subtracting SI prefixes creates ...
s 2. The metre per second squared is the unit of acceleration in the International System of Units (SI). As a derived unit, it is composed from the SI base units of length, the metre, and time, the second. Its symbol is written in several forms as m/s2, m·s−2 or ms−2, , or less commonly, as (m/s)/s. [1]
The SI has special names for 22 of these coherent derived units (for example, hertz, the SI unit of measurement of frequency), but the rest merely reflect their derivation: for example, the square metre (m 2), the SI derived unit of area; and the kilogram per cubic metre (kg/m 3 or kg⋅m −3), the SI derived unit of density.
1–4 m 2: Area of the top of an office desk 10 1 10–20 m 2: A parking space 70 m 2: Approximate surface area of a human lung: 10 2: 1 square decametre (dam 2) 100 m 2: One are (a) 162 m 2: Size of a volleyball court (18 × 9 metres) 202 m 2: Floor area of a median suburban three-bedroom house in the US in 2010: 2,169 sq ft (201.5 m 2) 261 m 2
M squared. In laser science, the parameter M2, also known as the beam propagation ratio or beam quality factor is a measure of laser beam quality. It represents the degree of variation of a beam from an ideal Gaussian beam. [1] It is calculated from the ratio of the beam parameter product (BPP) of the beam to that of a Gaussian beam with the ...
Symbol. cd/m 2. In SI base units: cd · m −2. The candela per square metre (symbol: cd/m2) is the unit of luminance in the International System of Units (SI). The unit is based on the candela, the SI unit of luminous intensity, and the square metre, the SI unit of area. The nit (symbol: nt) is a non-SI name also used for this unit (1 nt = 1 ...
M.2. M.2, pronounced m dot two [1] and formerly known as the Next Generation Form Factor ( NGFF ), is a specification for internally mounted computer expansion cards and associated connectors. M.2 replaces the Mini-SATA (mSATA) standard, which uses the PCI Express Mini Card physical card layout and connectors. Employing a more flexible physical ...
For example, the short symbol for 2 / m 2 / m 2 / m is mmm, for 4 / m 2 / m 2 / m is 4 / m mm, and for 4 / m 3 2 / m is m 3 m. In groups containing one higher-order axis, this higher-order axis cannot be omitted. For example, symbols 4 / m 2 / m 2 / m and 6 / m 2 / m 2 / m can be simplified to 4/mmm (or 4 / m mm) and 6/mmm (or 6 / m mm), but ...