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— "Values ranging from 21.3 to 21.5 gm/cm 3 at 20 °C have been reported for the density of annealed platinum; the best value being about 21.45 gm/cm 3 at 20 °C." 21.46 g/cm 3 — Rose, T. Kirke. The Precious Metals, Comprising Gold, Silver and Platinum .
Inner leaf (1700 kg/m3): 0.62 [50] Outer leaf (1700 kg/m3): 0.84 [50] ... This sample has a density of 1.36 g/cm 3. Sandstone: 1.83 [19] - 2.90 [19] 2.1 [112] - 3.9 [112]
The kilogram per cubic metre (symbol: kg·m −3, or kg/m 3) is the unit of density in the International System of Units (SI). It is defined by dividing the SI unit of mass, the kilogram, by the SI unit of volume, the cubic metre. [1]
The stones measure 480x60x60 cm and it is considered that its density could reach 2500 kg/m3; so the menhir weights over 4250 kg. Lithologically, its stones are siliceous sandstone which probably come from Illumbe, the slope of Usoteguieta mountain. As the distance between Illumbe and the menhir is over 100m, archaeologists have assumed that ...
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains, cemented together by another mineral. Sandstones comprise about 20–25% of all sedimentary rocks. [1] Most sandstone is composed of quartz or feldspar, because they are the most resistant minerals to the weathering processes at the Earth's ...
ISO 14688 grades gravels as fine, medium, and coarse, with ranges 2–6.3 mm (0.079–0.248 in) for fine and 20–63 mm (0.79–2.48 in) for coarse. One cubic metre of gravel typically weighs about 1,800 kg (4,000 lb), or one cubic yard weighs about 3,000 lb (1,400 kg). Gravel is an important commercial product, with a number of applications.
As there are many units of mass and volume covering many different magnitudes there are a large number of units for mass density in use. The SI unit of kilogram per cubic metre (kg/m 3) and the cgs unit of gram per cubic centimetre (g/cm 3) are probably the most commonly used units for density. One g/cm 3 is equal to 1000 kg/m 3. One cubic ...
Non-SI units of kieffers: Cal⋅cm −2 ⋅K −1 ⋅s −1/2, are also used informally in older references. [ i ] When a constant flow of heat is abruptly imposed upon a surface, e performs nearly the same role in limiting the surfaces initial dynamic "thermal inertia" response ( U dyn ≈ e ⋅ t −1/2 ) as the rigid body's usual heat ...