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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.
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+
In relation to the base unit of [length] => (meters), 1 Bohr Radius (Bohr) is equal to 5.29177E-11 meters, while 1 Rack Unit (ru) = 0.04445 meters.| 5161209840 Bohr Radius | to common length units |
|---|---|
| 5161209840 Bohr | = 0.27311935395017 meters (m) |
| 5161209840 Bohr | = 0.00027311935395017 kilometers (km) |
| 5161209840 Bohr | = 27.311935395017 centimeters (cm) |
| 5161209840 Bohr | = 0.89606087253992 feet (ft) |
| 5161209840 Bohr | = 10.752730470479 inches (in) |
| 5161209840 Bohr | = 0.29868695751331 yards (yd) |
| 5161209840 Bohr | = 0.00016970849858711 miles (mi) |
| 5161209840 Bohr | = 2.8867916071258E-17 light years (ly) |
| 5161209840 Bohr | = 1032.2622552148 pixels (PX) |
| 5161209840 Bohr | = 1.7069959621886E+34 planck length (pl) |