Recent content by ksio89

  1. K

    I Why are pollutant emissions measured in g/km?

    When we read about how much carbon dioxide (or any other air pollutant) an internal combustion engine in a certain vehicle produces, the measure unit employed is grams per kilometre, it is, mass per unit of distance. However, in my understanding, it would make much more sense to measure...
  2. K

    Not using a li-po battery reduces its life cycle?

    You could check Battery University website. It's basically a comprehensive encyclopaedia about battery technology, as the creator is a battery engineer itself working for a company called Cadex. From what I know, there should not be a problem as long as store lithium-based batteries above a...
  3. K

    Kinda tricky item in a question about an electrical circuit

    Thanks for the replies, but I still can't solve the question. I have four variables, i_1, i_a, i_b and V, but only three independent linear equations. Let's say i_1 = i_a+i_b, where i_a is the current on left loop which flows counterclockwise, and i_b on the right one, clockwise. The current...
  4. K

    Kinda tricky item in a question about an electrical circuit

    I'm trying to solve item "c" of this question about the electrical circuit depicted on the attached picture. The question is in Brazilian Portuguese, this would be a rough and not 100% gramatically correct translation: "In the circuit shown below on Pic. 1 (labeled "Electrical Circuit")...
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