10 cubic feet is 10 cubic feet regardless of the system. A square foot is 12x12x12 inches. It does not change.
MKS - metre, kilogramme, second. Volume is a cube of a distance, so the MKS system uses cubic metres, but often cheats and uses litres(cubic decimetres). Density is mass divided by volume, so the MKS unit is kilos per cubic metre - but that too is seldom used.
Kilograms per cubic metre
Density of water is approximately one gram per cubic centimeter(1gm/cm3) in MKS system .Further density is dependent on temperature of water.
The correct unit for speed in MKS system is 'm'.
In MKS measurement system, kilograms are used to measure mass
when the unit of any physical quantity is measured in terms of meter or kilogram or second or in combination of these then it is said that unit is in MKS system.
In the MKS (meter-kilogram-second) system, the unit of mass is the kilogram (kg).
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Any energy - electrical or otherwise - is measured in Joule.
CGS is NOT common nowadays. MKS is common because the SI, the international system of units, is based on it.
In the MKS (Meter-Kilogram-Second) system, the unit of displacement is the meter (m). In the CGS (Centimeter-Gram-Second) system, the unit of displacement is the centimeter (cm). In the SI (International System of Units), which is an extension of the MKS system, the unit of displacement remains the meter (m). Thus, the units of displacement across these systems are meters in MKS and SI, and centimeters in CGS.
meter/second2.