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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.646000000 Bohr Radius | to common length units |
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646000000 Bohr | = 0.0341848342 meters (m) |
646000000 Bohr | = 3.41848342E-5 kilometers (km) |
646000000 Bohr | = 3.41848342 centimeters (cm) |
646000000 Bohr | = 0.11215496784777 feet (ft) |
646000000 Bohr | = 1.3458596141732 inches (in) |
646000000 Bohr | = 0.03738498928259 yards (yd) |
646000000 Bohr | = 2.124147118329E-5 miles (mi) |
646000000 Bohr | = 3.6132368882782E-18 light years (ly) |
646000000 Bohr | = 129.20253923812 pixels (PX) |
646000000 Bohr | = 2.1365521375E+33 planck length (pl) |