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Why do we use k for constant of proportionality?
You can basically use any letter for a constant. "c" is often used because it's the first letter of "constant"; the use of "k" probably arises either from the fact that it has the same sound, in English, as "k"; or from other languages where the word "constant" is written with a "k" (e.g., "Konstante" in German).
Exactly 5.00 L of air at -50.0 C is warmed to 100.0 C What is the new volume if the pressure remains constant?
Vol = k*Temp where k is a constant. Vol2 = Vol1*T2/T1 = 5.00*373/223 = 8.36 litres, approx.
What is the value for Coulombs constant k?
8.998 X 10^9 N*m^2/C^2
What is the equation of a line perpendicular to y equals 4x-9?
13
T varies directly as r and inversely as s t equals 2 when are equals 26 and s equals 78?
(direct variation) t = kr, where k is any constant, and it is called the constant of the variation.t = 2 when r = 26t = kr2 = k(26) (divide by 26 to both sides)2/26 = kk = 1/13(indirect variation) t = c/s, where c is any constant, and it is called the constant of the variation.t = 2 when s = 26t = c/s2 = c/78 (multiply by 78 to both sides)156 = c
