Physics Questions

• symx

  25 Oct 08, 22:38

  

  

  Question 2 only.

  

• tinuviel07

  25 Oct 08, 22:42

  Power = Work done/ time

  2 = 3000/time

  Time = 1500s = 25 mins

• deteq

  25 Oct 08, 22:44

  pressure due to liquid column = height x density x gravitational field strength

  =h/5 x density x gravitational field strength.

  thus the answer should be A.

• iamapebble

  25 Oct 08, 22:50

  B Height of pressure at X = (4/5)h
      h -> 100 000 Pa
      (4/5)h -> 80 000 Pa

  D Apply your formua P = W/t
                                  2W = 3000/t
                                   t = 1500s
                                     = 25 minutes

   

  C Let x be distance between 2 consecutive dots.
  60 dots -> 59x.
  Therefore, 59x -> 1s
                     10x -> 0.17s (2d.p)
                    

   

• davidche

  25 Oct 08, 23:24

  guys shld be doing paper 2 nia. the qns and answers requried are longer and those are whats coming out!

• HollowGrowl

  26 Oct 08, 01:34

  question 2?

  E = Pt

  so

  t = E/P

  =3000/2

  =1500

• symx

  26 Oct 08, 08:28

  I'm getting my basic right so I can move on to paper 2. Thank guys for the input, I'm very happy that I finally understand how to do it.