The data-analysis tag has no wiki summary.
2
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0answers
112 views
Production vs. Collection, and Contaminants vs. Depositions, what might be missing in cold fusion research
I though cold fusion and LENR were discredited, but just a few days ago I found out that NASA is claiming LENR is real. So I thought if they're detecting something, what could it be, and why wasn't it ...
3
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1answer
27 views
How to determine frequency components present in distorted signal, with the set of possible components already known?
I am trying to choose the best approach to digitally analyse a signal, which is a mix of an unknown number (but less than 16) fundamental signals at specific frequencies (e.g., sines).
The goal is ...
1
vote
1answer
53 views
Uncertainty in Acceleration given the uncertainty in position
I had a motion detector record the position of a dynamics cart and automatically plot Position vs Time and Velocity vs Time plots in Logger Pro on the computer. If the instrument uncertainty in ...
1
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0answers
46 views
FFT of random binary data [migrated]
I am trying to make sense of FFTs and binary data.
Say I have a series of random binary data, which is measured with a repetition rate of 400Hz (interval time of 0.0025s). I have a total of 12489 ...
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0answers
28 views
Statistical fitting [closed]
I already asked this question on math.SE but nobody answered. I thought that physics people may be a lot more used to this kind of mathematical tools than mathematicians, so i'm asking here.
This is ...
3
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1answer
69 views
What algorithms are used for track reconstruction in cloud chambers?
In particular I'm interested in any algorithms that can separate multiple tracks from one another reliably.
1
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1answer
57 views
More points vs. precision
I have a dilemma.
In my lab exercise, I was measuring spectra with HPGe detector of several sources (gamma spectroscopy). To determine the energy of the unknown spectrum I first needed to calibrate ...
0
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1answer
34 views
Dealing with experimental data
I have some experimental data about a value $n$, now, I am supposed to give, in the ending, a single value with an error: $n=a\pm b $. I have originally 6 values of $n$, each one comes as an indirect ...
1
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2answers
371 views
Physical interpretation of y-intercept in a Current vs Voltage graph
So I collected current and voltage data from a simple circuit with a power source and a resistor, using a multimeter. I created a graph for this data using excel and got the y-intercept (which is ...
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0answers
35 views
How to calculate the correct coordinates from a distorted video of a projectile?
I am working on a high school project that is related to projectile motion. I am exploring how exactly the position of the center of mass affects the trajectory of a long but thin, javelin-like ...
4
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0answers
62 views
Design of experiments to determine proportionality
A common result of theoretical analysis in physics is some sort of relation derived from physical parameters and typically expressed in the form of a non-dimensional parameter. These scale relations ...
0
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3answers
96 views
How to find exponential values
I have a power equation for flow between two circular disks on a common axis as stator and rotor, which follows,
$$P = \frac{n^a}{G}\tag{1}$$
Where:
$P$ = power,
$n$ = revolution (1200 rev/min),
...
0
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1answer
103 views
Analysis of the impulse of 2 colliding carts under the effect of magnetic repulsion
Hi there! I have a question about an experiment that was conducted. It is related to momentum.
2 carts were put on a track on opposite sides. They were then propelled towards one another at ...
3
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0answers
86 views
Obtaining point of application of Ground Reaction Force with use of a hyperstatic load-cell array platform
I'm looking for the theory of an experiment that is giving me a hard time to perform.
I have an instrument composed of a rigid horizontal square plate rigidly supported under each corner by a ...
2
votes
1answer
120 views
Peak deconvolution [closed]
I need some help understanding how much information I can pull out of this data. I have a sample made up of two materials. Materials A and material B. Then I took a picture of the sample.
The two ...
