1. The problem statement, all variables and given/known data This is related to my last post. Again, I am getting a ridiculous answer hoping someone can help. I need to calculate discrepancy between two calculated values. 2. Relevant equations EQN 1 difference between values = Value 2 - Value 1 EQN 2 error of values = square root of (error value 1 ^2 + error value 2 ^2) discrepancy = EQN 1/EQN2 3. The attempt at a solution When I use EQN 1, I'm subtracting one value of spring constant k from another. The difference between my values is in the 3000 range. For EQN 2, my error value is in 2 x 10^-3. When I divide 3000/2x10^-3 I get 1500000 ! The answer should be relatively close to 2! Now, my previous post was regarding units for k. Could this be the problem? The error values I calculated though were based on the data given in cm, g, seconds squared, etc. Does this matter? It seems strange to me that my calculate K is say 14000.00 +/- 0.003 (for example). Small error for such a large number!