Results 1 to 2 of 2

Math Help - Urgent Calculus help needed please

  1. #1
    Newbie
    Joined
    Feb 2009
    Posts
    2

    Urgent Calculus help needed please

    Hello all , I am in a bit of a quandry as this question has got me really stumped does anybody know how to do it please ?

    1. In an electrical circuit an alternating voltage is given by v=25Sin100πt volts
    2. Determine:
    3. the mean and
    4. the r.m.s.
    values each correct to 2 decimal places over the range t = 0 to t = 10 ms.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Member
    Joined
    May 2008
    From
    Melbourne Australia
    Posts
    216
    Thanks
    29
    mean = \frac 1 {0.01}\int ^{0.01} _0 25 Sin(100 \pi t) dt


    rms =  \left( \frac 1 {0.01}\int ^{0.01} _0 [25 Sin(100 \pi t)]^2 dt \right) ^{1/2}
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Urgent Calculus help needed?
    Posted in the Calculus Forum
    Replies: 2
    Last Post: October 13th 2008, 01:41 AM
  2. Replies: 5
    Last Post: March 25th 2008, 09:52 PM
  3. Four 4's: Urgent help needed
    Posted in the Math Topics Forum
    Replies: 4
    Last Post: December 7th 2007, 06:34 AM
  4. Urgent Help Needed PLEASE
    Posted in the Algebra Forum
    Replies: 2
    Last Post: April 14th 2007, 06:33 AM
  5. Urgent Help Needed
    Posted in the Algebra Forum
    Replies: 1
    Last Post: February 27th 2006, 11:15 AM

Search Tags


/mathhelpforum @mathhelpforum