ElectricPavlov

Pages:

1-9    9 digits

10-99   180 digits

100-999  2700 digits

    total so far  2889

       the rest of the pages are 4 digits long

(3401 - 2889) / 4 = 128     more pages past 999            999 +128 = 1127 pages

P.E. = m g h

You are given  m   and   v       Kinetic energy = 1/2 m v²

Potential energy =  m  g  h       m = mass    g = gravitational constant    h = height

   you will need to either use SAE units or metric units ...this Q has both ....you need to convert

You are given    mass    and     velocity

momentum = mass  *   velocity  = ..........     kg-m/s

3 3/20   x  50 =   63(50)/20 = 157.5    =   1.575 x 10²

I will assume this is  6 (i^87)  

     rememeber this:             i^2 = -1         i^3 = -i           i^4 = 1  

6 (i^87)    =  6  (i^4)21 * i^3     = 6* 1* -i  =   -6i   

3 sqrt 2  - 6i

modulus = sqrt of both parts squared and added

sqrt(  (3 sqrt2)^2  +  (-6i)^2)

     sqrt( 18 + -36(-1) ) =  sqrt 54

mass x velocity =momentum

mass  x  30 m/s  = 42000 kg-m/s     You should be able to take it from here ! 

  There ya go !    GOOD answer !!