The same amount of time as it takes light waves; RF (radio frequency) is a type of electromagnetic wave, just like light. To get the time, divide the distance by the speed (in this case, the speed of light).
The rf value is shorthand for the retention value of a substance. It is used in chromatography to determine the components of an unknown sample.
Blue.
The largest Rf value is 1, which occurs when the compound remains at the origin of the chromatogram and does not move at all. The smallest Rf value is 0, which happens when the compound moves with the solvent front and does not adhere to the stationary phase.
Rf values are used mainly for simplicity. These values are generally easier to use to obtain percentages between a couple objects instead of using values that are already established.
This is a 10 Franc ("10F") coin from France ("RF" stands for "Republique Francaise", which is French for the French Republic)
54.350.869 coins were struck in 1935. Value : about 5 dollars.
There is no kind of aircraft called simply an "RF" - must be numbers or more letters attached.
As a collector's item, it would depend on the condition it is in, and how plentiful this denomination and year combination is. At face value, it is worthless, for all practical purposes. As a matter of fact, since France adopted the euro in 2005, you might not be able to exchange this even if it were a much bigger value. In 1960 new francs were issued, with a value of 100 old francs to one new. Your 5 franc would then have been worth 5 centimes. When I was in Europe in the late 1960s and 1970 I think you could get a cup of coffee for about 50 centimes--that would have been ten of the coin you have.
Rf is about .45
wt is RF SURVEY?
What is rf transmitter
rf
At a high enough power density, the amount of RF absorbed by human tissue may heat the tissue enough to damage it. Consider what a few hundred watts of RF for a few minutes can do to the leftover meatloaf in the 'microwave' oven.
RF = Radio Frequency
At a high enough power density, the amount of RF absorbed by human tissue may heat the tissue enough to damage it. Consider what a few hundred watts of RF for a few minutes can do to the leftover meatloaf in the 'microwave' oven.
CAPM equation E(Rj) = rf + b[E(Rm) - rf] 0.14 = rf + 1.5(0.12-rf) 0.14 = rf + 0.18 - 1.5rf -0.04 = rf - 1.5rf -0.04 = (1-1.5)rf -0.04 = -0.5rf rf = 0.08 rf = 8%