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A rack unit (abbreviated U or RU) is a unit of measure defined as 1.75 inches (44.45 mm). It is most frequently used as a measurement of the overall height of 19-inch and ..more definition+
The Bohr radius (a0 or rBohr) is a physical constant, approximately equal to the most probable distance between the proton and electron in a hydrogen atom in its ground state. It is named after Niels Bohr, due to its role in the Bohr model of an atom. Its value is 5.2917721067×10^−11 m.
In relation to the base unit of [length] => (meters), 1 Rack Unit (ru) is equal to 0.04445 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.6689000000 Rack Unit | to common length units |
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6689000000 ru | = 297326050 meters (m) |
6689000000 ru | = 297326.05 kilometers (km) |
6689000000 ru | = 29732605000 centimeters (cm) |
6689000000 ru | = 975479166.66667 feet (ft) |
6689000000 ru | = 11705750000 inches (in) |
6689000000 ru | = 325159722.22222 yards (yd) |
6689000000 ru | = 184749.84217172 miles (mi) |
6689000000 ru | = 3.1426492971145E-8 light years (ly) |
6689000000 ru | = 1123752141575.1 pixels (PX) |
6689000000 ru | = 1.8582878125E+43 planck length (pl) |