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Recent content by Fate0

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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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