Recent content by trot

Hi, i am confused and perhaps someone can help me:(haha i am so confused i need someone with atleast a phd or doctorate in physics ) v/d=H0 v= velocity of distant galaxy H0= hubbles constant d=distance to galaxy The problem i having is that if since the expansion of the universe is at...

Homework Statement Find all possible pairs of integers a and n such that: log(1/n)(√(a+√(15)) - √(a -√(15)))=-1/2 (that's log to the base (1/n)) The Attempt at a Solution (1/n)^-1/2 = (√(a+√(15)) - √(a -√(15)) ∴ n^4 = (a+√(15) - (a -√(15) - 2√((a+√15)(a -√(15)) ∴ n^4 = =2√(15)...

Homework Statement A sigma plus,\sum+ particle is a baryon a)How many quarks does sigma plus contain? b)If one of these particles is an s quark, by what interaction will it decay? c)Which baryon will it eventually decay into? b]solution attempt [/b] Baryons contain 3 quarks don't know...

Please intergrate: (x+3)/(x^2+4x) is it even possible to integrate this? The question in the book was (x+2)/(x^2+4x) and it can nicely be integrated to 0.5ln(x^2+4x), but by changing the 2 to a 3 f'(x) don't go into each other. if you know what i mean.

How does the voltage on a capacitor vary if the dielectric is an ionised gas?

In a electric current charge flows, what flows in a magnetic circuit?