Yahoo奇摩 網頁搜尋

  1. get a move on 相關
    廣告
  1. ...solve for a gives a = 2.22 m/s^2 since a is +ve, the lift is moving up with an acceleration. Should the lift... = 350 N The reading on the scale would be lower than her...

  2. ... the reason why the brake pads would get hot in frequent braking. However...in hard braking, the wheels silde on the road surface. Thus producing a large amount of heat by friction. The kinetic...

  3. ...good if the coin is not moving too fast. Using ...ma The terms on the LHS is the...derivative of h with respect to time) a = d2h/dt2 (second...one can solve it, one can get practically all information about...

  4. ...and at the same time they have got sufficient energy to overcome the...intermolecular attractive force. As a result, separation between these..., they increase in volume on heating. When...certain extent and become free to move . The free motion of these...

  5. ...downward force when the vehicle is moving =mg + f, where f is the force...ma into the above equation, we have a = u(mg + f)/m = u.g + u.f/m ... velocity dependent. It gets smaller when the speed of the...

  6. ... to write F = m dv/dt. Rather, we have a variable m m = mr / √(1 - v²/c²...) ...(2) Rearranging (2), we can easily get v = p c / √[ (mr c)² + p²] ...(3...

  7. ...plane,therefore the friction acting on the block points upward,as it...slope) When the block is moving up,both the weight compoent and the frcition... two equations,we get 2f=-ma f=-ma/2= x 2.66666.... / 2...

  8. ... (1) and (2) or (1") and (2),we get two results I think you...1),to left,use (1") 1b)average force on the black ball=(change in momentum of black...2x10h) h=154m 2b)By s=ut+(0.5)( a )(t^2) s=[(200x1000)/3600]+(0.5)(-10)(1.5...

  9. 簡直偉大發明 , 但我在四十多年前已有此幻想 , 可謂出產太遲 , 由少年已變成中年阿叔。

  10. 1. By F=ma, 12000 - 2000 = 2000a a = 5ms^-2(downwards) By s= ut+1/2at^2, s = 0(7) + 1/2(5)(7... You should apply 210N upwards in order to pull the bucket up at a constant velocity 3b. I am not sure for this question..... Is the magnitude...

  1. get a move on 相關
    廣告