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  1. How is the syringe used in the experiment ? Merely stating the question can't help. You need to describe...

  2. ...at starch production. Therefore we need to destarch the plant/leaf before the experiment . If starch is found after the experiment , that means the...

    分類:香港 > 灣仔區 2015年03月23日

  3. The period of oscillation T of a simple pendulum only depends on the lenght L of the suspension string. In fact, the formula for the period is given by, T = (2.pi).square-root[L/g] where g is the acceleration due to gravity.

  4. The motion of the sticky tape is given by, T.cos(theta) + Ff = mR.w^2 where T os the tension in the threadc, (theta) is the angle between the thread and the horizontal, R is the radius of the circular motion, w is the angular speed. Ff...

  5. 1. Observable change : A colour gas is given off. Equation : MgCO3 + 2HCl →MgCl2 + H2O + CO2 ==== 2. (i) CuCO3 + H2SO4 →CuSO4 + H2O + CO2 (ii) This...

    分類:科學及數學 > 化學 2015年03月04日

  6. ...ve added the sodium hydrogencarbonate solution in previous step, you should repeat the experiment without noodle (so-called "Blank"), see how much acid is...

    分類:科學及數學 > 化學 2015年03月06日

  7. In your experiment , the rate of heat absorbed Q by the running water can be calculated... the flow rate that is required. But you need to detemine Q by experiment .

  8. 1. At t = 0 s, the capacitor C behaves like short-circuit. Hence, current = E/R, Voltage on C = 0 v At t = infinity, the capacitor is fully charged and behaves like open circuit. Hence, voltage on C...

  9. ...particular, the speed of light is constant irrespective of the speed of the observer. Experimental proof of the Theory has been carried out by ...

  10. In the first experiment : Mass ratio Na : O = 100 : 35 Molar ratio Na...

    分類:科學及數學 > 化學 2014年12月17日