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  1. There is only one queation ( Q (c) ) on Archimedes' Principle At...acceleration due to gravity, T is the tension of the chain (= 1600 N) hence, upthrust = (800g + 1600) N = 9600...

  2. ...energy was dissipated. ------------------------------ Q : when the fallen tree glow, what kind of energy it give...the process of photosynthesis (光合作用) and a chain of biological/chemical processes, more tree cells...

  3. ...5/4/2003 3rd       106.9 mph Dodonpa      Fuji- Q Highland Fujiyoshida, Yamanashi Japan...