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  1. A is correct. B is incorrect. For A , weight = mass X acceleration due to gravity i.e. W = mg where g is the...

  2. ... .......................... /_____________ 1.( a ) The weight of the wooden block is 4X10...12-16 17:46:55 補充: the compoent of weight will also be downward 10N,finally there is a downward net force 20N acting...

  3. 25( a ) Weight of the plank = 200kN Assume the density...the vertical = tan -1 (200 sin (60 deg) / 100) = 60 deg 26 ( a ) Tension of the rope to the weight = weight = 200N Tension of the rope to the...

  4. a . Weight of a water molecule = [(1.67 X 10-27) X... 10-26 = 3.004 X 10-26 kg b. Weight of hydrogen atoms in a water molecule = (1.67 X 10-27) X 2...

    分類:科學及數學 > 數學 2007年10月10日

  5. 1. a ) Weight of John = (x + 10) kg Weight of Yvonne...350 3x + 206 ≤ 350 3x ≤ 144 x ≤ 48 Maximum weight of Mary = 48 kg ===== 2. a ) 5n + 2(100 - n) > 300 3n + 200 > 300 3n > 100 n...

    分類:科學及數學 > 數學 2012年08月24日

  6. First you have to prepare a measuring cylinder, a weight and a thread. Step 1: Measure the volume of the weight . ( Reading...

  7. ... not that correct if you are writing ... He uses a weighted sled that helps PUSHING/TO PUSH his ...

    分類:社會及文化 > 語言 2007年03月25日

  8. ( a ) weight of block = 5.4g N = 52.92 N... acting on the block = weight of block = 52.92 N (d) Pointing...apply the equation of motion to train B, a -ve sign should be given to a decceleration...

  9. MSE(t) is a weighted average of the squares of the distances between t and the class ...

  10. ... weights of A and B. There can be 3 cases: i) weight ( A ) < weight (B). Let the 3 coins in A ...

    分類:科學及數學 > 數學 2007年08月02日