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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 city block is between 1⁄20 and 1⁄8 mi (80 and 200 m). In Manhattan, the measurement "block" usually refers to a north–south block, which is 1⁄20 miles or 80 meters. Someti ..more definition+
In relation to the base unit of [length] => (meters), 1 Bohr Radius (Bohr) is equal to 5.29177E-11 meters, while 1 Blocks (bl) = 80.4672 meters.| 8400 Bohr Radius | to common length units |
|---|---|
| 8400 Bohr | = 4.4450868E-7 meters (m) |
| 8400 Bohr | = 4.4450868E-10 kilometers (km) |
| 8400 Bohr | = 4.4450868E-5 centimeters (cm) |
| 8400 Bohr | = 1.4583618110236E-6 feet (ft) |
| 8400 Bohr | = 1.7500341732283E-5 inches (in) |
| 8400 Bohr | = 4.8612060367454E-7 yards (yd) |
| 8400 Bohr | = 2.7620488845144E-10 miles (mi) |
| 8400 Bohr | = 4.6983266039531E-23 light years (ly) |
| 8400 Bohr | = 0.0016800330179569 pixels (PX) |
| 8400 Bohr | = 2.77817925E+28 planck length (pl) |