Recent content by max0005

  1. M

    Linearization of Inverse Proportionality

    Homework Statement Dear All, I currently have a set of data which, when plotted on a scatter diagram, proves an inverse proportionality between two sets of data. (Please see attachment.) I now need to linearize the graph as to estimate the half-life of the foam. Homework Equations...
  2. M

    Calculating Related Rates of a Metal Cube

    I'd have another question, always on the same type of problem. A girl approaches a tower 75m high at 5km/hr. At what rate is the distance from the top of the tower changing when she is 50m from the foot of the tower? What is given is: \frac{dX}{dt} = 5km/hr ) Where X is the...
  3. M

    Calculating Related Rates of a Metal Cube

    Ok, getting that too! :D Thank you very much! :D
  4. M

    Calculating Related Rates of a Metal Cube

    I get about 234, while the book gives 37.5 ..
  5. M

    Calculating Related Rates of a Metal Cube

    So L(5) is 12.5. Therefore I should now substitute values in the equation for \frac{dV}{dt}, but doing so returns a wrong answer according to my textbook...
  6. M

    Calculating Related Rates of a Metal Cube

    Dear Mark44, thanks for your answer. I'm sorry, I always mistake terminology and syntax. What I meant is that the length of the sides at time T is 10 (original size) + 0.5 (expansion/hour) * T (number of hours): 10+0.5(T)... Is this correct?
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    Calculating Related Rates of a Metal Cube

    Homework Statement Dear All, I am having problems understanding how to deal with related rates. The problem is the following: A solid 400gm metal cube of size length 10cm expands uniformly when heated. If the length of its side expand at 0.5cm(hr), find the rate at which, after 5...
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    How Should Uncertainties Be Calculated When Multiplying Values Near Zero?

    Homework Statement Dear All, Suppose I had to values: A (±a) and B (±b) where A not equal to a and B not equal to b. I have to find the product of A and B taking into consideration uncertainties. Homework Equations A (±a) * B (±b) = C (±c) where c = (a/A+b/B) The Attempt at a...
  9. M

    Doppler Effect, Stationary source moving observer

    Homework Statement My books states, considering a stationary source emitting waves at frequency f, such waves having velocity v, and an observer approaching the source along a linear path at velocity vO we have that: The observer registers the velocity of the waves at v+v0. Up until now all...
  10. M

    Differentiate Fraction: Finding the Derivative of 2/(x+1)

    Then I'd get \frac{1}{h}*\frac{-2h}{x^2+xh+2x+h+1} But I don't understand how to continue..
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    Differentiate Fraction: Finding the Derivative of 2/(x+1)

    Homework Statement Find the first derivate of \frac{2}{x+1}. Formula: \frac{f(x+h)-f(x)}{h} Homework Equations Formula: \frac{f(x+h)-f(x)}{h} The Attempt at a Solution \frac{\frac{2}{x+h+1}-\frac{2}{x+1}}{h} h(\frac{2}{x+h+1}-\frac{2}{x+1}) h(\frac{2(x+1)-2(x+h+1)}{(x+1)(x+h+1)}...
  12. M

    Non-Cyclic Phosphorylation of Photosynthesis

    Homework Statement Dear All, I would like to ask you a question as the concept doesn't seem to be best explained on my book. It is stated that during non-cyclic phosphorylation two electrons (One per molecule of Chlorophyll in the reaction center.) leave PSI, travel an electron transport...
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