13590079-n
|
R, gas constant, universal gas constant
| |
[in physics] the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole |
06833004-n
|
r, R
| |
the 18th letter of the Roman alphabet |
13646031-n
|
R, roentgen
| |
a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air |
05102101-n
(4)
|
radius, r
| |
the length of a line segment between the center and circumference of a circle or sphere |