Results 1 to 2 of 2

Math Help - questions in physics help

  1. #1
    Senior Member
    Joined
    Oct 2009
    Posts
    290

    questions in physics help

    1 ) the mass of medicine in a tablet is 350mg.
    Express this nass in SI units ?

    350 X 10 ^4 = 3500000

    2) the compnents of a vectory are of equal magnitude if the angle between the vectory and X-axis is .................. . (zero )

    3 ) A ball is thrown directly downward with an initial speed of 10 m/s , from a height of 50 m .
    After what interval dose the ball strike the ground ?

    V0 = 10 Dx = -50 with (-) becuse downward
    Dy = v0t + 1/2 gt^2
    -50=-10t+1/2X-9.8Xt^2
    t = 2.23
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor Unknown008's Avatar
    Joined
    May 2010
    From
    Mauritius
    Posts
    1,260
    1. Why did you multiply by 10^4?

    You were also asked to express in SI units which I don't find...

    2. I don't think I understand this question.

    3. I'm getting 2.3329... = 2.33 s.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. questions in physics
    Posted in the Math Topics Forum
    Replies: 1
    Last Post: January 4th 2011, 09:08 AM
  2. questions in physics ( last)
    Posted in the Math Topics Forum
    Replies: 3
    Last Post: November 9th 2010, 08:27 PM
  3. questions in physics
    Posted in the Math Topics Forum
    Replies: 1
    Last Post: November 9th 2010, 05:16 AM
  4. Physics questions
    Posted in the Math Topics Forum
    Replies: 4
    Last Post: November 22nd 2007, 03:10 PM
  5. 3 Physics Questions
    Posted in the Math Topics Forum
    Replies: 6
    Last Post: November 18th 2007, 03:55 PM

Search Tags


/mathhelpforum @mathhelpforum