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Mathematical Constants
Intriguing, ubiquitous, and at times mysterious, numerical constants set the allowable limits for all universal phenomena. Whether your questions involves π, Avogadro's number, Planck's constant, the atomic mass unit, or any of the other multitudes of immutable numbers used in science, this is the category where they should be asked.
2,332 Questions
Find the unit of gravitational constant?
The Universal Gravitational Constant is 6.67428 x 10-11 m3 kg-1 s-2 or 6.67428 x 10-11 N (m/kg)2. For more information, please see the Related Link below.
An atomic mass unit is equal to?
One-twelfth the mass of a carbon-12 atom or 1,660538921(73)×10−27 kg.
What is the Feynman point of the number pi?
The "Feynman Point" is a series of six nines in pi. It starts at the 762nd decimal place.
π = 3.1415926 ... 1134999999837 ...
The series is named after Richard Feynman for claiming in a lecture that he wanted to memorize pi up to the 762nd digit so that he could end his recitation with "nine, nine, nine, nine, nine, nine, and so on." This would give the false impression that pi is rational, since infinitely repeating nines indicate a terminating decimal (see "Wikipedia article '0.999...'" in related links).
What is the exact value of gravitational constant?
The exact value is not know but it is approx 6.67408*10^(-11) m^3kg^(-1)s^(-2)
Conversion of Stefan-Boltzmann constant into SI units?
The metric value is given as 5.6704 e-8 W M-2 K-4. Using the following conversions:
1 W = 3.412 Btu/hr
1 m2 = 10.76391 ft2
1 K = 1.8 R (or F)
(5.6704 e -8 W M-2 K-4) * (3.412 (btu/hr)/W) / (10.76391 ft2/m2) / (1.8 R/K)^4
The English value would be 0.1714 e-8 BTU hr-1ft-2R-4.
What does pi look like as a number?
pi looks like
3.1415926535897932384626433832795.....
as a number and goes on forever.
According to the system devised by the psychologist Stanley Smith Stevens, it is the highest (fourth) level of measurement.
What is the name of the biggest number?
There is no biggest number. Numbers go on forever. Infinity isn't a number.
Why should other parameters be kept constant when using specific gas law?
I guess you're talking about the PV=nRT equation; well the volume of a gas depends on the temperature so of course the temperature must be kept constant or your pressure will be affected. The moles of the gas will also affect the pressure. Usually this equation is used to calculate the number of moles it will take to occupy a certain volume or vice versa at standard temperature and pressure: 1 atm and 0 degrees Celcius.
Are the rest mass of the positron and the electron exactly equal?
Yes; they simply have opposite charges.
What is the approximate speed of light in kilometer per second?
What is the approximate speed of light in kilometer per second?"
What number divided by another number equals pi?
This has an infinite number of answers, for example: pi / 1, (2 x pi) / 2, 1 / (1/pi), etc.
This has an infinite number of answers, for example: pi / 1, (2 x pi) / 2, 1 / (1/pi), etc.
This has an infinite number of answers, for example: pi / 1, (2 x pi) / 2, 1 / (1/pi), etc.
This has an infinite number of answers, for example: pi / 1, (2 x pi) / 2, 1 / (1/pi), etc.
How does the mass of an electron compare to the mass of a nucleon?
The vast majority of mass in an element is located in the nucleus, comprised of protons and neutrons. Electrons are considered to have almost no mass, although that they exist at all would imply that they must in fact have some mass.
