Well, all I want is the value of the error, i.e. E(t_i) = E_{moth}(t_i) + E_{meas}(t_i) . In that case, can I simply add the standard deviation (which I am taking to be the error caused by mother nature, i.e. E_{moth}(t_i) ) to the measurement error, E_{meas}(t_i) ?
I'm interested in...
Thank you for your response.
Well I'd like to convey the uncertainty in the measurement at each point in the time period, which will be a combination of the uncertainty from the moving average calculation (i.e. the standard deviation) and also the uncertainty associated with the apparatus...
I have been monitoring the temperature of a mirror surface placed outside at night. The temperature is measured at 10s intervals and so, as you can imagine, a plot of the data for one period is quite noisy. I have therefore decided to "smooth" the data by plotting a moving average over a...
Thanks for the link, elegysix.
JeffKoch - my problem in finding the source of the equation stems from the fact that it was found in a Solar Energy journal somewhere but I can no longer gain access to Solar Energy journals via my university account. Hence why I'm trying to find it by other...
I am trying to model the cooling of an object (for example, a sheet of glass) placed outside at night. At the moment I am only considering heat loss by radiation.
I know that the net radiation from the object will be:
Rnet = Robj - Rsky
where:
Rnet = the net radiation from the object...
Thank you for getting back to me so quickly.
I did as above, and got:
1/3(22l(l+1)hbar2 + 22l(l+1)hbar2 + l(l+1)hbar2)
Then used the values of l given in the subscript of each eigenfunction, and got an overall answer of 12hbar2. Does that sound about right?
Thanks again x
Ok I know that:
〈H ̂ 〉= <S|H ̂|S>
which is:
=sum(a*nam<En|H|Em>)
=sum(a*nam<En|Em|Em>)
=sum(a*namEm<En|Em>)
=sum(a*namEmdeltamn)
=sum(|am|2 En)
=<E>
So am I right in thinking that I just have to do:
<L2> = sum(|coefficients|2 * L2)
If so, what do I use for L2...
Homework Statement
Consider a hydrogen atom whose wave function at time t=0 is the following superposition of normalised energy eigenfunctions:
Ψ(r,t=0)=1/3 [2ϕ100(r) -2ϕ321(r) -ϕ430(r) ]
What is the expectation value of the angular momentum squared?
Homework Equations
I know...