The SI base unit for distance is the meter, according to the International System of Units. From this base unit, using a system of equations, a number of derived quantities are obtained, such as area, volume, speed and acceleration.
In 1791, the French Academy of Sciences first attempted the precise measurement of a meter by equating it to one 10millionth of the Earth's meridian from a pole to the equator. Through the centuries, there were various attempts to make this measurement more precise. In 1983, the General Conference on Weights and Measures (CGPM) established the present definition. Currently, a meter is the length of the path traveled by light in a vacuum during a time interval of 1/299,792,458 of a second.
The density is the mass per unit volume. The SI unit for density is kilograms per cubic meter. It is calculated by the formula, the density = mass divided by volume. For more information
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The SI units for distance is
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A hertz is defined as one cycle per second when describing any periodic phenomenon. The unit is abbreviated as Hz with a capital H, because it comes from the proper name of a German
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mainly meters are being used. : symbol (m)
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