Recent content by p53ud0 dr34m5

  1. P

    Help with conversion of equation

    Q=C_{\rho*v}^y i agree with whozum. you should just use logarithms. it doesn't matter about the subscript.
  2. P

    Andrew Seeks Help on Physics Question Involving Train Braking

    wouldnt the braking create a greater magnitude of friction or create friction if there wasnt any initially present?
  3. P

    Finding the Limit of tln(t) as t Approaches 0

    i agree with OlderDan. h(x)=f(g(x)) if you have that, then: h'(x)=f'(g(x))*g'(x) so, sine is not the derivative of itself.
  4. P

    Understanding the Mechanics of Gravity: How and Why It Works

    antigravitation, the heim theory looks quite interesting. i love to look at new theories, because i have little faith in the current theories. unfortunately, the computer I am on does not have acrobat reader, so i am unable to view the files. the computer at my job = not cool. when i get...
  5. P

    Math Course Suggestions for Graduating with Honors

    im always looking for a challenge, so i think ill challenge myself with real analysis. the description you provided makes it seem like calculus with proofs. that ought to be fun :smile: . ill talk to my bc teacher and see what she thinks. thanks quasar987 :wink: .
  6. P

    Math Course Suggestions for Graduating with Honors

    what type of problems are involved in real analysis and abstract algebra? hehe, guess the wrong section to post this...moderators feel free to move it :smile:
  7. P

    Math Course Suggestions for Graduating with Honors

    i just finished calculus bc ap at my school, and i have no more math classes to take there; i need all 4 years of math to graduate with honors :confused: . I am planning on taking a college course in math next year, but i don't know what math course to take. i was wondering if any of you had...
  8. P

    How Do You Integrate tan(x)sec^2(x)?

    shouldnt it be: \int sec^2x~tanx~dx=\int\frac{sinx}{cos^3x}dx then, you could do u-sub and set u=cosx and go from there? *Edit* dextercioby, you put sinx instead of cosx. i think tanx = sinx/cosx *Edit*
  9. P

    What is the centripetal acceleration of the child?

    have you figured out the velocity in terms of the period yet?
  10. P

    Stuck on Calculus Integrals: What Should I Do Next?

    1) you have \frac{dy}{dx}=2x+1[/tex] so, you set up the integral: \int dy = \int(2x+1)dx solve the indefinite integral, plug in for x and y, and solve for C. 3) this a u-sub problem, where u=3x^2-7 and [itex]du=6xdx 2) use the same concept as in #1
  11. P

    Exam study - help a brother out (diff etc)

    yes, the first one looks fairly simple. what do you know about parametric equations and their derivatives?
  12. P

    Comparing the Properties of CsF and NaF: Melting Point and Solubility

    NaF having a smaller radius could account for its higher boiling point. If an atom has a smaller radius, that means the elements are closer together, so more heat is needed to separate them.
  13. P

    Intersection of Lines & Planes: Find Point?

    well, here's what i do to find the point of intersection of two lines. i just set them equal to each other.
  14. P

    Calculating Incline Distance for a Rolling Sphere | Review Questions Answered

    hmmm, let's see: \frac{1}{2}mv^2+\frac{1}{2}I\omega^2=mgh \frac{1}{2}mv^2+\frac{1}{2}(\frac{2}{3}mr^2\frac{v^2}{r^2})=mgh \frac{1}{2}mv^2+\frac{1}{3}mv^2=mgh 3mv^2+2mv^2=6mgh 5v^2=6gh \frac{5v^2}{6g}=h h=2.125~meters yea, i got the same thing as cde42003. :confused:
  15. P

    Calculating Incline Distance for a Rolling Sphere | Review Questions Answered

    what is the inertia of a hollow sphere? I=\frac{2}{3}mr^2?
Back
Top