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  1. ...temperature of Y. This only happens when the final temperature is above 35'C.

  2. ...potential energy + initial kinetic energy = kinetic energy at height x above ground + potnetial energy at height x above ground...impact, whereas the vertical component v0.sin(θ1) will follow the above analysis. Just substitute the initial velocity...

  3. a. Use a travelling microscope. b. The glass above is not flat, so the fringe separation is not constant. c. The...

  4. .../4R^2 = W/4 2. g = GM/R^2 At height h above earth surface, acceleration due to gravity g' is g' = GM/(R...

  5. (a) No change. (b) Increase (c) Decrease The above can be explained by the Law of Conservation of Angular Momentum (角動量守恆定律). (d) No change Decrease Increase

  6. ...wave no. which equals to 2.pi/入 i.e. D.sin(theta) = m入 The above equation can be re-written, for the first minimum, as D.sin(theta...

  7. If we neglect air resistance, all of the object above the earth surface fall with the same gravitational acceleration and hence same time for it to...

  8. ...a = -10 ms-2 Let v be the velocity of the stone when it is just above the head of the window v’ be the velocity when it is just below the window...

  9. I suppose conductor Q is above conductor P, and both are carrying a current. The direction...

  10. 1. Length of the mercury column above 0°C = 11 + 9 x [(80 - 50)/50] = 16.4 cm True temperature = 100 x [16...