Recent content by yuheng_wu

  1. Y

    Can someone tell me which formula to use here? (time to boil water)

    An amount of water at a temperature of 20 °C is passed through a water boiler in 1.5 min to brought to boiling point. The kettle is broken and does not jump off. The time between the moment when the water reaches boiling point and the moment when all the water is evaporated, is equal to: a) 7,5...
  2. Y

    Can someone please clarify this formula? (hydrostatic pressure)

    Is in the bottom of a liquid the pressure equal to p 0 + ρ.g.h or only ρ.g.h? please can someone tell me this correctly?
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