Recent content by mikeyman2010

  1. M

    Solving the Chemistry Mystery: 2NO2 <---> N2O2

    Hi, I know this is a physics/math forum, but I'd really like some help on this equilibrium question. :frown: Consider this reaction: 2NO2 <---> N2O2 If I increase the pressure, then the system will shift to the right, and thus the forward reaction rate will increase. After awhile, a...
  2. M

    Are Independence and Disjoint Events the Same in Probability?

    but then what is the difference between independence and disjoint events?
  3. M

    Are Independence and Disjoint Events the Same in Probability?

    I'm working on a question which requires you to understand the difference between Independence and disjoint events. The question is: Suppose 24% of a population have 4 years of college, and 15% are laborers/workers. From this, can you conclude that 0.24 x 0.15 = 0.036=3.6% of the population are...
  4. M

    Epsilon in Simple Harmonic Oscillators

    No, i remember there's this formula for SHO x=Acos(wt), but i know that epsilon can be added into this formula, but can't figure out what.
  5. M

    Epsilon in Simple Harmonic Oscillators

    Can anyone tell me what role epsilon play in a simple harmonic oscillator, and what the formula is relating epsilon to SHO?
  6. M

    How Should a Riverboat Navigate to Cross a River Efficiently Against a Current?

    Er, this is too deep for me... lol. Do I need to worry about this stuff in high school, cus I have NO idea what you guys are talking about... :confused:
  7. M

    Do you prefer walking across a flat or arched type design?

    1. The Tacoma Narrow Bridge 2. It was a disaster due to engineers who designed the bridge not being able to calculate the possibility of resonance/oscillation due to small input of wind force. 3. Yes 4. Let's just say I wouldn't cross ANYTHING that swung great vertical distances like...
  8. M

    What Factors Affect the Measurement of Reaction Rates in a Closed System?

    Yeah, i thought it was b) too. The main problem I'm having is understanding what increasing the mass of the "system" means. Can anyone explain? Does it mean increasing the mass of the entire reaction, such as all of the substances, etc.?
  9. M

    What Factors Affect the Measurement of Reaction Rates in a Closed System?

    Er, how can it? the chlorine ions exist on both sides, and they don't take part in the reaction itself. Water molecules exists only on the product side. There's also only 1 correct answer.
  10. M

    What Factors Affect the Measurement of Reaction Rates in a Closed System?

    I came across this question on one of the practice papers I have and isn't sure about the answer, any help would be appreciated. The following reaction occurs at constant temperature and constant volume in a closed system: CaCO3(s) + 2H(ion)(aq) + 2Cl(ion)(aq) -> CO2(g) + H2O(l) +...
  11. M

    How Should a Riverboat Navigate to Cross a River Efficiently Against a Current?

    Yes, sorry about this, I thought I posted this question in the wrong place, and posted again here. The correct answer is b), pointing it straight across, since we only consider one direction, north, and to get the maximum speed possible would be to point the boat directly across. Anywhere else...
  12. M

    Why Should the Boat Head in a Specific Direction to Cross the River Quickly?

    Oh, i see, so even if you go straight, and get blown off-course, the distance you travel from south to north stays the same, right?
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