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  1. ...improvement可以做 a. start the experiment b.use a lower power heater,,(less water spills out of the beaker) c.immerse heater completely (reduce heat loss to surroundings...

  2. ...soon become unviable. 2. Penguin is extremely susceptible to the risk of oil spills . Indeed, in recent years there have been two major spills ...

  3. 1. For no spilling of water, centripetal acceleation = ghence, 2^2/R = g = 10where R is the...

  4. ...葉綠素離開 2.吾可以將酒精直接煮沸,因酒精是易燃品,直接煮沸酒精會很容易 spill out and燒着,做成危險

  5. ...處理, 這方面我亦不知何處, 試下打去環保處問. 水銀因為其suface tension很高, spill out 必成珠狀, 就算到皮膚, 亦不易吸入, 清理時可穿上膠手套, 用硬片紙將...

  6. ...you expect to happen? Do you think that you could not pour water into a cup without spilling ? The answer is simple. If you could ever fill a cup with water in...

  7. ...kg) at a temperature of 60 C. That is to say, if you accidentally spill such amount of hot water onto your skin, you would feel pain. The amount...

  8. ...even underwater lights and sounds, and by maintaining a minimum spill flow past the turbine. 2.2 Hydropower can impact water quality and flow. ...

  9. ... water by untreated sewage in developing countries. Oil spills can cause skin irritations and rashes. Noise pollution ...

  10. The condition that no water be spilt out is, mg = mv^2/r where m is the mass of water in the pail v is the min speed at the highest point r is the radius of the circle g is the acceleration due to gravity, taken to be 10 m/s^2 Hence, g = v^2/0.7 v = 2.65 m/s