Recent content by jnimagine

  1. J

    I know that when you hyperventilate, the Pco2 in blood decreases

    I was initially thinking arterial CO2 because after you blow a lot of it out through hyperventilating, less CO2 would be left to go to the body... but I'm not exactly sure :S
  2. J

    I know that when you hyperventilate, the Pco2 in blood decreases

    I know that when you hyperventilate, the Pco2 in blood decreases... but is it the venous or arterial PCo2 that's decreasing? Can someone please clarify this? Thank you!
  3. J

    Questions about oxygen level in humans

    1. The % of hemoglobin bound with Oxygen is different at high and low carbon dioxide concentrations when the partial pressure of O2 equals 0mm Hg True or false?? This should be false right...? if partial pressure is 0... Hb can't bind to any oxygen in the first place... is my reasoning...
  4. J

    Please help! ion channels? voltage?

    Whole-cell patch clamp electrophysiology can be used to record: a. the activity of the ion channels that are present in the patch of membrane. b. the activity of multiple neurons at a given time. c. voltage and/or current across the membrane of a cell. d. multi-unit activity...
  5. J

    Some questions about neuro stuff

    Whole-cell patch clamp electrophysiology can be used to record: a) the activity of the ion channels that are present in the patch of membrane b) the activity of multiple neurons at a given time c) voltage and/or current across the membrane of a cell d) multi-unit activity My guess: c...
  6. J

    Data acquisition for waves

    well that's the problem... cuz 450 is not in the choices.. :( what do you think the best choice is...???
  7. J

    Data acquisition for waves

    If your MP100 is recording at 10 sps and your input analog signal is at 100Hz, how many waves would the data acquisition miss in a 5 s recording? a. 50 b. 1000 c. 25 d. 500 e. 100 This means that you're sampling every 10 cycles. Then you miss 9/10. so once it goes through 100 cycles...
  8. J

    Maclaurin series coefficient

    hmm i'm still not too sure... I do get the series u've written above... now for sinx i expand it like x - x^3/3! + x^5/5!... up to the fourth order.... and plug in 0??.... doesn't that just make everything equal to 0.....????
  9. J

    Maclaurin series coefficient

    Homework Statement find coefficient of x^4 in the MAclaurin series for f(x)=e^sinx Homework Equations ok... so taking derivatives 4 times for this function.....gave me a mess!!! @.@ can someone help me in simplying the derivatives...? 1. cosxe^sinx then for 2. is it...
  10. J

    Series; convergence, divergence

    ohhhh i get it now~~ thank you!! ^^ can anyone help me on inverse trig series that i've written above?? :S also... i think i made some mistake again in using the ratio test for this question: sum(infinity, n=1) (-1)^n((5^2n)/n!) i end up with lim(25/n+1)... and it's supposed to be...
  11. J

    Series; convergence, divergence

    series; convergence, divergence.... Homework Statement 1. sum(infinity,n=1) n!/1.3.5...(2n-1) 2. sum(infinity, n=1) (-1)^n arcsin(-1/n) 3. sum(infinity, n=0) arcsin(1/n^2) / arctan(1/n^2) The Attempt at a Solution 1. i used the ratio test and then i ended up with lim((n+1)(2n-1)/2n+1))...
  12. J

    Integral problem

    so if y = 2sinb then dy = 2cosbdb hence 1/2(integral]0->2f(y)dy) = 1/2(6) = 3 Is this the answer?
  13. J

    Integral problem

    suppose that f is continuous and (integral]0->2 f(x)dx = 6. Then (integral]0 -> pi/2 f(2sinb)cosbdb=? ok.... i'm totally lost here... how do u solve this without knowing what f(x) is..????
  14. J

    Arclength question

    this is a really easy question... but seems like i keep getting something wrong in my calculations... - - Find the arclength of y = x^3/2 0<x<5/9 when i do it using the formula; L = sqreroot (1+(dx/dy)^2) i keep getting one... can someone post the calculation process.....
  15. J

    Rolling motion?

    A uniform, spherical bowling ball of mass m and radius R is projected horizontally along the floor at an initial velocity v0 = 6.00 m/s. The ball is not rotating initially, so w0 = 0. It picks up rotation due to (kinetic) friction as it initially slips along the floor. The coefficient of...
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