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  1. ... Equation is a very important equation in Quantum Mechanics, just as important as Newton's Laws in classical mechanics...

    分類:科學及數學 > 物理學 2017年02月06日

  2. ...potential energy of the charges. This is analogous to the situation in mechanics in which a mass falls from a height. During the fall, energy is...

    分類:科學及數學 > 物理學 2016年12月04日

  3. Parabola: y(t) = pt^2 + qt + r y(2) = 4p + 2q + r = 0.75 ..... (1) y(3.3) = 10.89p + 3.3q + r = 1.2 ..... (2) y(4.5) = 20.25p + 4.5q + r = 0.9 ...

  4. ...negligible as such internal forces are usually weak, so in Newtonian mechanics, internal forces are omitted and he derives the formula...

    分類:科學及數學 > 物理學 2015年08月30日

  5. ... follows the definition in mechanics. Potential energy for repulsice force...paragraph to read as: This is simple mechanics, given the total energy ...

  6. ...野同係hk 學既有少少唔同, 而且有好多數要計(有一d 係同physics 有關, 如mechanics, 亦有一d 係同stats 有關), cover左好多唔同類型既數... 所以呢個你要睇下你... ...

  7. In brief, "electric potential" is analogous to "height" in mechanics (i.e. in a gravitational field). 1. V = U/q is the definition ...

  8. Why not read materials on the web. The following physics web-sites are useful: 1. Hyper-physics: http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html ...

  9. (i) Volume of box = (pi x 0.5^2) x 0.4 m^3 = 0.3142 m^3 Weight of box = 0.3142 x 900g N = 2827 N [Take g, the acceleration due to gravity, to be 10 m/s^2] ...

  10. (a)(i) Acceleration from A to B = 20/4 m/s^2 = 5 m/s^2 Deceleration from C to D = 20/5 m/s^2 = 4 m/s^2 (ii) Total distance travelled = area of trapezium ...