Recent content by GandhiReborn

Awesome, massively appreciate the kind words and confirmation - thank you :D

Homework Statement Question 1) A second hand bookshop owner notes that the weights (in gram) of paperbacks are Normally distributed with mean m1 and standard deviation s1, while the weights (again, in grams) of hardbacks are Normally distributed with mean m2 and standard deviation s2...

Thank you. :) Yeah I'm pretty sure it'd be c against d^1/2, which if proportional should be a straight line through the origin right?

Homework Statement Without a graph, test the suggestion that the speed, c, of the water wave is related to water depth, d, by: c ∝ d^1/2 No other data is given, this is suppose to be collected by myself but I am revising for a practical exam paper without having the data given. Markscheme...

D'oh! You legend, thank you :D

Homework Statement "K-40... decays by two radioactive processes. It can decay by electron capture or β- emission. It is found that a sample containing 4.0x10^18 nuclei of K-40 emits a total of 68 β- particles and photons each second. This shows the half life is 1.3x10^9 years." Use the...

Maybe talk about de Broglie's equation and its origins, discussing or providing pictures of the sort of fringe pattern you would see when light is passed through a diffraction grating and relate it to that. This is outside my understanding but maybe even look briefly (or deeply, depending on how...

I actually thought this and drew the two triangles, but I guess my mind got crowded and I freaked out so I quickly stopped and came on here. Thank you, going back and tying it to this concept, having already worked out how to get my values with you guys' prior awesome help has allowed me to...

Okay, you sir are a legend but there is no way that the working out I just did is what they were looking for?? (the answer I got was right btw, as it were in my notes which had poor explanation): I said tanθ = v^2/rg; given v=rω and r=0.5sinθ ∴ tanθ=ω^2/g subbed in values and rearranged gave...

Well R = 0.5Sinθ, but I still don't know θ at this point... and v=rω but I only know ω right? Don't worry mate. I know I'm missing something blindingly obvious here, and I'm sorry for missing it. Thank you both of you, I really do appreciate your responses. But I'm still not getting that...

Homework Statement A particle of mass 15g is attached to the end of a string of length 50cm, rotating at 6rads-1 to form a conical pendulum. Find a) The tension in the string Find b) The angle 2. The attempt at a solution Okay I get that Tcosθ= mg & TSinθ=...