Do you really have to make it as complicated as the solution suggests – physics free fall?
I would have simply calculated h = 1/2 * g * t^2 so h = 1/2 * 9.81 * 1.5^2 = 11.03m.
Why is my uncertainty greater than my result?
I'm writing a report and had to calculate some values. When calculating the uncertainty, I get a result that's larger than my actual result. The calculation is clear from the images.
How do I calculate the concentration error?
I have given the following concentrations of HCl in mol/L: 0.0004 0.0006 0.001 0.002 0.003 0.005 0.007 0.01 0.02 0.04 0.07 0.1 We determined these concentrations using a dilution series. The volumetric flask we used has an inaccuracy of 0.010 mL… so how do I determine my concentration errors?
Function errors?
If k is a function of T, how can I calculate the error of k(T) if the intercept and slope are error-laden quantities? I tried using Gaussian error propagation, but I'm not sure if that's correct. I should get an error Delta k, which also depends on T because the function is not linear.
How does the error of a measured value change when squared?
In an experiment, I measured the period T of a spring pendulum and calculated the corresponding absolute error. Now I need to calculate my period T^2 squared, but how does the absolute error change when I square it? Since squaring the period is simply multiplying the period by itself, I thought I could simply add…
Stopwatch measurement error?
Our stopwatch says 1/10s What do these 1/10s mean? Is this the measurement error?
How does the standard deviation change with more measurements?
In my opinion, it's impossible to say whether it will decrease, increase, or remain unchanged, since more measurements only make the standard deviation more accurate, meaning it gets closer and closer to a certain value. But everyone claims something different. And can this also be applied to the sample standard deviation?
Compensation invoice?
Solution: Hello everyone, Three questions about the above task: Why do the parameters of the minimized function according to the solution have to be added, whereas the parameters of the original function have to be subtracted? Is the radian usually used for calculations in such a function? My solutions: a = 3.02 and b =…
Best fit calculation (least squares method)?
Hello everyone, I have a question regarding the following problem, or rather my method of calculating it. I would like to know why the second equation, the one that is differentiated with respect to b, doesn't also yield a = 1.1. I understand that b = 0 because the line passes through the origin. However,…
Differential calculus with multiple variables; error propagation?
Hello everyone, can someone please help me with the following task and tell me what I did wrong: A triangle with side c = 103.m and angles alpha = 50 gon and gamma = 35 gon is given. The standard deviations are sigma(c) = 3 cm, sigma(alpha) and sigma(gamma) = 1 mgon each. Side c…
Total differential; error calculation?
Hello everyone, I have a question about the following task: How do I proceed here? Is it correct that I first transform to R and thus obtain the function R(p,V,T) = p*V/T? Then I have to take the partial derivative of the function with respect to the three variables? If my approach so far has…
Does the sample standard deviation become smaller with more measurements?
Or does it remain unchanged? The standard error will definitely decrease.