How do we account for multiple sources of uncertainty in a …
Oct 15, 2020 · Do sigfig rules for addition and subtraction apply also to uncertainties? For the example above, would the uncertainty be +/- 1 degrees celsius (retaining one sigfig only -- not …
How many sig figs do i use when making conversions
Aug 31, 2008 · Homework Statement I have to do a bunch of problems such as converting meter to km and cups to mililiters etc. How do i calculate sig figures for these problems for example i …
Sig figs/certainty in percent error calculation - Physics Forums
Dec 9, 2019 · Hello, all. Quick question about how to apply sig figs in percent error problems. Eg. If the actual/target value is 1.95 g and we measure 1.87 g, then...
SigFigs in Volume and Uncertainty? - Physics Forums
Apr 24, 2016 · The "sigfig" rule is only a rule of thumb and should not be used if you have the option. If you have actual uncertainty values, as is the case here, those are what you use. I …
What are Significant Figures? A 5 Minute Introduction
Jun 4, 2019 · Significant figures (commonly called "sig figs") are the number of figures (digits) included when rounding-off a number. The rules about how to round-off are not entirely agreed …
Logarithmic significant figures - Physics Forums
Dec 29, 2014 · In most areas of science, being able to solve and report problems to the correct number of significant figures is necessary; but I'm having trouble finding a complete set of …
Thermodynamics (final temperature, ice mixed with steam)
Feb 11, 2013 · The problem involves mixing 10 kg of ice at 0 degrees Celsius with 2 kg of steam at 100 degrees Celsius, aiming to find the final temperature of the mixture. The calculations …
Sig Fig & Acids - pH Change & NaOH Effects • Physics Forums
May 18, 2005 · The discussion centers on significant figures (sig figs) in pH calculations and the effects of adding NaOH to an acetic acid solution. When calculating pH from a 0.1 M acid, the …
Sig Figs: Converting Celsius to Kelvin & Graphing Moles vs Time
Oct 25, 2010 · I want to convert celsius to Kelvin using 273.15. I have a temperature 22.5 C. Then I want to find 1/T. 273.15+22.5 = 295.7 since 22.5 has the least...
Why do 0.1 and 1/10 work but 0.3-0.2 doesn't? - Physics Forums
Nov 23, 2022 · It does seem a little weird that Python doesn't round the result of 0.3-0.2 at fewer digits and print 0.1 instead of 0.999999... Why? If you want to reduce precision you can do that …