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  1. Archimedes Principle states that the upthrust acting on an object...liquid displaced. This is the Principle of Floatation, a specialized form...

  2. ...會有平均值和變異數這兩件事物出現。Heisenberg Uncertainty Principle 就是明確地指出了任意兩個物理量A,B之間的變異數一定符合以下不等式...

  3. 1. How does the transformer incorporate the principle of mutual induction? There are coils wound around soft...

  4. There is only one queation (Q(c) ) on Archimedes' Principle At equilibrium, mg + T = upthrust where m is the mass of the object...

  5. ..., upthrust on the object = 1200 N By Archimeddes Principle , upthrust = weight of water displaced thus, weight of water displaced...

  6. ...due to gravity, taken to be 10 m/s^2 By Archimedes' Principle , upthrust = weight of water displaced = 10 000 N Weight of box...

  7. This principle finds its major application in airplane and it explains...through a station (you can support your point by using bernoulli principle ) I think unless Physics is the main theme for...

  8. 1. (a)(i) weight of person = 50g N where g is the acceleration due to gravity (ii) Upthrust = 50g N (iii) Weight of water displaced = upthrust = 50g N 2. Upthrust = 1.2 x 0.05g N = 0.06g N 3. (a) Weight = 7800 x (0.5^3)g N = 975g...

  9. (b) Upthrust on box = 450 kN Hence, weight of water displaced = 450 kN Mass of water dispalced = 450000/g kg = 4.587 x 10^4 kg Volume of water dispalced = 4.587 x 10^4/1025 m^3 = 44.75 m^3 Thus, h = 44.75/(pi x 2.5^2) m = 2.279 m (c) Pressure at half...

  10. Volume of air displaced by the balloon = 2000 m^3 Upthrust on the balloon = weight of air displaced = 2000 x 1.25g N = 25000 N where g is the acceleration due to gravity, taken to be 10 m/s^2 Weight of hot air inside balloon = 2000 x 0.95g N...