Recent content by 3hlang

  1. 3

    Centripetal acceleration and velocity derivation

    in physics, I've been taught that centripetal acceleration is given by v^2/r, but when i try to derive it myself, i get a=2v^2/(pi*r). i said that if the time period is T, after a time of T/4, the velocity would be going in the next direction, i said west to south, and this gives the equation...
    • 3hlang
    • Thread
    • Acceleration Centripetal Centripetal acceleration Derivation Velocity
    • Replies: 1
    • Forum: Mechanics
  2. 3

    Integral of y=sqrt.(x^2+a^2) or y^2=x^2+a^2

    would i be right in thinking that cosh(x)=cos(ix) and sinh(x)=-isin(ix) and therefore cosh(x)+sinh(x)=e^x?
  3. 3

    Integral of y=sqrt.(x^2+a^2) or y^2=x^2+a^2

    how do you integrate this... y=sqrt.(x^2+a^2) would greatly appreciate any help. thanks
  4. 3

    If y=x^x then what is x in terms of y?

    what? i wasn't claiming to have done anything radical to the formula. all i wanted to know was what you do the w function of. but thank you for telling me
  5. 3

    If y=x^x then what is x in terms of y?

    so if x=y^y, then y=?
  6. 3

    If y=x^x then what is x in terms of y?

    i know this is possible to find with iteration, but is it possible to find it algebraically?
  7. 3

    Is the Taylor polynomial for ln(1-x) the same as the one for ln(1+x)?

    by normal do you mean real? and if you mean 0 then i thought that 0^0 still equals one
  8. 3

    Is the Taylor polynomial for ln(1-x) the same as the one for ln(1+x)?

    can you help me with a problem my dad set me? he asked what to the power of 0 does not equal one? I am guessing its to do with expansions of logs. help would be greatly appreciated. thankyou
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