Experimental data Definition and 65 Threads

hi, I am doing a project on special relativity (im 17, doing A level maths, further maths and physics) for this project, I need to analyse some data. can anyone tell me where on Earth you can find data from experiments which give empirical evidence of special relativity, like muons...

Homework Statement I'm new to uncertainty, so I needed a little assistance. The circuit in this experiment was simple, a dry cell connected to a variable resistor. I used an ammeter on the circuit and used a voltmeter across the resistor and took some measurments. The experiment was to...

I'm looking for a way to compare experimental and theoretical data and determining if it obeys a certain law. In particular, I'm writing a computer program that does this and at the moment what I'm doing is, I'm calculating the ratio of each reading with the theoretical result and calculating...

Hi, I need your help. From experiments I got data set which I need to analyze. The problem is that my data is not smooth. I tried to fit my data using a polynomial equation, but the fitting was not good enough. I also tried to smooth, spline... but got very different final results. Can anyone...

The photoelectric current is known to be directly proportional to the intensity of incident light with fixed frequency. Questions: 1) What are the experimental values of this proportionality constant for various fixed frequencies? 2) Is there a theoretical derivation that provides a formula...

Consider that high quality experiments furnish data that relate proper time intervals to coordinate time intervals for different values of the relative velocity (life time dilationf moving mesons). An inteligent computer program could find out the best function of the relative speed which...

Homework Statement http://img217.imageshack.us/my.php?image=dscf3381gv1.jpg2. The attempt at a solution http://img113.imageshack.us/img113/6683/dscf3380tp0.jpg It's really confusing, and the teacher didn't really go too much indepth on how to work this, so far i plotted the data, i used...

Are there any experiments that show how light is treated as a frames velocity is changed (not the light source, rather the "eye".) For example if a huge clock that is counting down from 10 is 10 light seconds away before I accelerate (at t=0) to a velocity where my length contraction is *.5 (I...

Wasn't sure which section this should be in, so please move if inappropriate. If a plot between two variables theoretically should pass through the origin, should you force the linear regression through the origin. I seem to get a much better value for my gradient when forced through the origin...

Hi all, I was wondering if PhD students in theoretical aspects of cosmology,gravitation, black holes... etc do any/much analysis of experimental data, and just mainly omit observational technique, or if their entire education is in learning physical theory and making predictions and solving...

Homework Statement Experimentally measured time of fall vs. distance for a freely falling object Distance, x (m) Time, t (s) 0.1 0.148 0.2 0.196 0.3 0.244 0.4 0.290 0.5...

I would like to compile direct and indirect data on the speed of light in the universe.o:) How much evidence do we have that it is constant, even close to a black hole? What kind of observations could be relevant to answer such a question? Thanks for your comments, links and references...

Goodmorning, I would be interrested in experimental data regarding the Bremsstrahlung process near the quantum mechanical cutoff, possibly single events data. I thought that maybe something like a bubble chamber picture could illustrate this process. This is maybe a naïve dream but this...

I have a graph which shows the rate of cooling of a tent from about 35 deg C to 15 deg C, it looks like this: http://students.bath.ac.uk/en0jma/graph.gif How do I work out the convective heat transfer coefficient of the tent from this data? Thanks for any help

I might not have carried out my experiment very rigorously using a toy gyroscope that lasts 7 minutes. But in 20 measures the two top lasting winds were the ones that had precession and the rest were showing equal lasting with variations of 30 seconds usually