Recent content by Kahsi

Hence my smilies :wink:

\tan(\alpha + \beta) = \frac{tan(\alpha)+\tan(\beta)}{1-\tan(\alpha)\tan(\beta)} \tan(x - 30) = \frac{tan(x)+\tan(-30)}{1-\tan(x)\tan(-30)} \frac{tan(x)+\tan(-30)}{1-\tan(x)\tan(-30)}=\tan(50) \tan(x)+\tan(-30)=\tan(50) - \tan(x)\tan(-30)\tan(50) \tan(x) + \tan(x)...

I have done this, I = I_0e^{-x\mu} \frac{I}{I_0} =e^{-x\mu} \ln\left(\frac{I}{I_0}\right) =-x\mu \ln\left I =-x\mu + \ln I_0 Then if we take ln(numbers of decays) we would have this graph: y = ax + b a = \mu = y' then I just have to do a linear regression and get the value of...

Hi. I have done this lab where I had a GM-detector and some leadboards. I was mesuring how many decay it detected and tryed 0 - 6 leadboards to see the difference. We know that I = I_0e^{-x\mu} How can I find out the value of \mu in the...

It's like saying, "If I'm in an airplane. Will I be smashed against the tail if I'm in the middle and jump up?"

Thank you for the reply krab. I have now another question. We know that mgh = \frac{mv^2}{2} => h = \frac{v^2}{2g} And we also know that s = v_0t + \frac{at^2}{2} When it's a free fall v_0 = 0. That gives us s = -\frac{gt^2}{2} So what's the difference between s and h? Thank you.

Hi. A man is throwing a plate in the air. The plate reaches the height of 40m and the length of 70m. What was the speed of the plate? This is what I've done v_y: mgh = \frac{mv^2}{2} => v = \sqrt{2gh} = \sqrt{2*9,82*40} = 28m/s v_x: v = v_0 + at => t = 28/9,82 = 2,85s s =...

Let's say that an electron is having the speed of X m/s. So the energy is sometimes calculated like this: (1)E= \frac{mv^2}{2} and sometimes like this (2)E = mc^2 + \frac{mv^2}{2} When should I use 1 and when should I use 2? Thank you for any help.

Is there any other then bosons that it doesn't work for?

Does it include all types of particles? All atoms? Thank you.

So, thank you both for the help.

So basically nothing, except that the \gamma photons have more energy?

Hi! I hope this is the correct section to post this question in. What's the difference between \gamma-decay and photons? Thank you in advance.

Thank yo marlon. :smile:

Hi! I just have one question, How does a photocell work?