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    where can we find feb march 2016 paper

    Do you have history 9389 papers for March?
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    Physics: Post your doubts here!

    Hello. I was wondering if any of you could help or share some resource with me regarding Kirchhoff's Second (Voltage) Law. I just cant seem to make sense of the sign conventions used. Is there any easier way of assigning signs. Any help is appreciated.
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    Mathematics: Post your doubts here!

    Thankyou very much. I have another question. If you or anyone else can answer me , that would be great. So for motion up a slope, for example a lorry, the examiner uses a number of formulas. in 9707/42/M/J/12 Q6 ii) he uses WD by car’s engine = (Gain in PE + WD against resistance) + KE gain...
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    Mathematics: Post your doubts here!

    9709/43/O/N/11 Q7. iii) The examiner in the marking scheme used the formula: Work done by engine = Work done against resistance + KE gain. I am wondering why he didnt included work done by driving force since the body does have a driving force causing acceleration. Thanks!
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    Mathematics: Post your doubts here!

    O/N/13 Paper 43. Q1. It says A particle moves upa line of greatest slope of a rough plane inclined at an angle alpha to the horizontal where sin alpha = 0.28. The coefficient of friction between the particle and plane is 1/3. i) Show that the acceleration of the particle is -6. Now, I checked...
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    Chemistry: Post your doubts here!

    The enthalphy change of formation hydrated calcium ions is this. Ca(s) + aq – 2e– → Ca2+(aq) So we need to go Ca2+ in the end. We take Ca(s) and convert them to Ca(g) . Delta H = 177 Now comes the Data Booklet part. We need to ionise this Ca(g). First ionisation energy = 590 Second ionisation...
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    CAMBRIDGE LEARNERS AWARDS: CAN ANYONE POST PLEASE?

    Where did you get the pdf from?
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    CAMBRIDGE LEARNERS AWARDS: CAN ANYONE POST PLEASE?

    Can somebody please post Islamabad's list?
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    Maths, Addmaths and Statistics: Post your doubts here!

    Are you guys sure kay frequency density ka graph banna tha because they didnt mention it. Most of my friends and I made for frequency. And for the one saying, histogram is only made by frequency density, no sir. You can make a histogram of frequencies aswell. :p
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    Maths, Addmaths and Statistics: Post your doubts here!

    Of course everyone wrote the values. :S
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    Maths, Addmaths and Statistics: Post your doubts here!

    Let X be the investment. X + Interest = 2781 X + 3 x X x 1 / 100 = 2781 100X + 3X = 278100 103X = 278100 X = 2700
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    Maths, Addmaths and Statistics: Post your doubts here!

    2010 tak saray P2's done hain. Dont know what to do now. I guess 2011 kay karun aur phir IGCSE's kay thoray say karun ga.
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    Maths, Addmaths and Statistics: Post your doubts here!

    Ap time 30s ki line kay sath ley rahay ho jabkay hamnay , 60s ya 0 kay sath lena hai. Tu it should be, 0.2 = x / 20 (Kyunkai x is the velocity at t=40 and it reduces to 0 and 20 is 60-40)
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    Maths, Addmaths and Statistics: Post your doubts here!

    66. Angle at centre is twice the angle at circumference.
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    Maths, Addmaths and Statistics: Post your doubts here!

    it's 150 + 20(k-15) = 750 So the 300 gets added to 600, while you're subtracting it. 900/20k = 45
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    Maths, Addmaths and Statistics: Post your doubts here!

    FE = X ( FD) -p+q = X ( 3p + k(2q - 4p) ) -p+q = X (p (3-4k) + 2kq) ) -p + q = Xp (3-4k) + 2Xkq In addmaths we can compare coefficient of P and Q. -1 = X(3-4k) 1 = 2Xk Form two simultaneous. Substitute. and you get 1.5 of K.
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    Maths, Addmaths and Statistics: Post your doubts here!

    Hit and Trial. This question is way to easier if you do it with the add maths.
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    Maths, Addmaths and Statistics: Post your doubts here!

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    Maths, Addmaths and Statistics: Post your doubts here!

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    Biology; Chemistry; Physics: Post your doubts here!

    For the Mg and Na , wasnt it the electrostatic one? Electrostatic forces of attraction are forces of attraction between oppositely charged particles. That is what metallic bonding is, the attraction between positive ions and sea of electrons. Na releases 1 electrons while Mg releases 2 electrons...
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