Recent content by Sorin2225

Thanks for the help everyone, like I said I did just kind of stumble upon the equation as someone else was using it to solve a similar question. Sorry if it wasn't described well. Also sorry for not putting in the values needed but I didn't want anyone to solve anything, just wanted to know if...

The actual homework question is about finding the voltage of a tapered wire, one where the two ends are different sizes (1cm and 2cm in this case). I've been searching for an equation to do this simply by just plugging in the values I have and I came across this. Where is resistivity, h is...

sqrt(a^2+b^2) so it would be Sqrt((i^2)^2+((psi(4)^2)^2))

|iψ4*iψ4|

So it's the absolute value? which means that it's +1 not -1?

I've worked through it doing what I thought I should have done. I normalized the original wavefunction(x,0) and made it = one before using orthonormality to get to A^2(1-1) because i^2=-1 but my final answer comes out at 1/0 which is undefined and I don't see how that could be correct since A is...

The rate of radiation rleased is just constant isn't it?

During every half life, half of the amount of sample will decay

For energy of nuclear decay, pretty much just that the change in mass would be related to the energy via e=mc^2.

fundamentals of physics

University first year. New Zealand

It has decayed from Cs to Ba and continues to decay by emitting gamma and beta particles?

Because the lab assistant put it in their pocket and so now they are absorbing radiation energy from the sample

A 0.1 g sample of pure Cesium-137 is produced. Cesium-137 decays via β− emission into a metastable nuclear isomer of Barium-137 which in turn decays via the emission of a gamma-ray into stable Barium-137. Cs-137 has a half-life of 30.17 years and the β− particle produced has an energy of 0.512...

It's a given as the rate of emitting radiation after 12 hours.