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  1. M

    Can someone teach me how to draw cellulose??

    Im lost
  2. M

    Found a good link for Macbeth notes...I think

    http://www.bbc.co.uk/scotland/education/bitesize/standard/other/sos/english/critical_essays/index.shtml But i still have problems writing up an essay. I cant get out of this procastination .. Im so desperate .. this is not all i have to do. I dont understand why we have to pick specific...
  3. M

    The importance of feeling words in the AOS paper

    You often need to use a feeling word in the AOS Section 1 paper , right?? like when they ask how is this composer feeling(and support urself with techniques - well u first have to have a word that explains how he feels) u might say resentful.... So i thought why not look up feeling words. Plz...
  4. M

    I am STRESSED

    There is so much quotes in Macbeth all over the play... I cant include or remember them all. What if i pick some and then the q they ask wouldnt help to fit them in? Also what if they ask about 2 specific scenes ??? I dont think 2 scenes are enough for an essay. I CANT START WRITING THIS...
  5. M

    A Question about pracs...

    How many pracs do u guys think we'll have for the entire crazy exam?
  6. M

    Q2Q - Lots of dp

    Describe Fermis demonstration of a nuclear chain reaction in 1942. Describe Fermis initial experimental observation of nuclear fission. Discuss the importance of conservation laws to Chadwicks discovery of the neutron. With this Define the components of the nucleus (protons and...
  7. M

    3U Combinations Q

    I need help with this problem. Im so bad at cominations and just decided to do 5 q's to see how they are. I cant do the first one. Q In how many ways can 4 consonants and 3 vowels be arranged in a row so that the first and the last places are occupied by consonants.
  8. M

    Why dont we...

    Why dont we just tackle all the dotpoints here together and properly like we would on our own????? everyone would benefit and learn better too.
  9. M

    Q&Q - Need help with Davisson and Germer Experiment.

    What does annealing mean?? Why did that cause diffraction ? "The surface of the nickel consisted of many microscopic crystals bonded together at random orientations" - phrase 1 What are they talking about?? Atoms of nickel are bonded together with equal spacing, arent they? or are they...
  10. M

    Another Q&Q - DP

    Describe the impact of de Broglies proposal that any kind of particle has both wave and particle properties His proposal started the quantum mechanics theory because scientists found that if light could exhibit wave-particle duality then macroscopic classical theories could not be obeyed...
  11. M

    Q&Q- Stationary States

    I think these certain orbital states are stationary because if they we're to radiate and lose only a bit of energy which is associated with the acceleration of the circular obit then they wouldnt be able to spiral down and go to a lower energy state, because the loss of energy associated with...
  12. M

    Q&Q - Have a problem with rutherford scattering experiment.

    Why do alpha particles deflect by the thin gold foil?? Why not any material?? I thought the deflection was just because of repulsion of the alpha particle and the nucleus, so the repulsive power should be the same regardless of the material shouldnt it?? The book says its because of...
  13. M

    Complex Numbers - Q

    Given w=u+iv , u = x - x/(x^2+y^2) ,v = y + y/(x^2+y^2) and that x^2 + y^2=1 Find the locus of w PLZ RESPOND QUICKLY!!! haha Thanks
  14. M

    Space - Error in Physics Text Books

    HAHA. I think there is an error associated with the reasoning in the textbooks as to why so much heat is generated during re-entry. They say the high heat is due to fast friction with the atmospheric layer and the spacecraft. However i believe most heat is due to compression of the air...
  15. M

    Space - DP Problem

    Define the term orbital velocity and the quantitative and qualitative relationship between orbital velocity, the gravitational constant, mass of the central body, mass of the satellite and the radius of the orbit using Kepler's Law of Periods where does keplers law come in this ? this site...
  16. M

    Elementary Particle Dynamics Q

    Plz solve this q for me. The combined air and road resistance of a car in motion is proportional to v^2 , where v is its speed. When the engine is disengaged the car moves down an incline making an angle InverseSine(1/30) with the horizontal, with a velocity of 30m/s . Find the force required...
  17. M

    Production of Materials assesment

    Outcomes of assesment. 1. Describes and predicts reactions involving carbon compounds. 2. Explains reactions between elements and compounds in terms of atomic structures and periodicy. 3. Describes the chemical basis of energy transformations in chemical reactions. 4. Describes and...
  18. M

    ??

    why does an electron increase the momentum of positive ions and why would this cause distortion? this is to do with the BCS theory and superconductivity.
  19. M

    Need help!

    I need help with the forming of cooper pairs. The Pauli Exclusion Principle states that two Indistinguishable electrons cannot occupy the same quantum level or state. I know that if two electrons have different spins then they are distinguishable and as a consequence of the principle...
  20. M

    integration problem ..

    integrate x^2/(x+1) . when u do it by substitution using u=x+1 and hence converting x^2 to (u-1)^2 and changing du to dx you get -3/2 in the final result. changing the integral to [(x+1)(x-1) +1]/(x+1) and integrating it this way you get a similar result without the -3/2. my question...
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