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  1. ShreeyaBeatz

    Further Mathematics: Post your doubts here!

    You guys help me on this! Just help me complete this problem. For your easiness I've attached the picture !
  2. ShreeyaBeatz

    Physics: Post your doubts here!

    please answer my question Hassan ! thread no #6472
  3. ShreeyaBeatz

    Physics: Post your doubts here!

    PLEASE HELP! HOW DO YOU CALCULATE THIS ?? I COULDNT REACH THE ANSWER :( A student wishes to determine the density ρ of lead. She measures the mass and diameter of a small sphere of lead: mass = (0.506 ± 0.005) g diameter = (2.20 ± 0.02) mm. What is the best estimate of the percentage uncertainty...
  4. ShreeyaBeatz

    Chemistry: Post your doubts here!

    Hey ! Please help me with this question. The reaction between Fe3+ ions and I– ions is an equilibrium reaction. 2Fe3+(aq) + 2I– (aq) gives 2Fe2+(aq) + I2(aq) The concentrations at equilibrium of Fe3+(aq) and I2(aq) were as follows. [Fe3+(aq)] = 2.0 × 10–4 mol dm–3 [I2(aq)] = 1.0 ×...
  5. ShreeyaBeatz

    AS Level Organic Chemistry notes by jayanath/jayanannathana

    why is that i cant see any download link ? :( please post it again!! pleasee
  6. ShreeyaBeatz

    AS Level Organic Chemistry notes by jayanath/jayanannathana

    Hey I cant see any download links on this forum. Mind posting me the notes for a level organic chemistry ? Please!!
  7. ShreeyaBeatz

    Chemistry: Post your doubts here!

    does Cr2O7/H+ (heat under reflux) react with (CH3)3COH ? What actually is (CH3)3COH? Is it alcohol or an ester? Please help !
  8. ShreeyaBeatz

    A level Biology: Post your doubts here!

    9700/11/o/n/09 Please Help ! Question no 16 and 18
  9. ShreeyaBeatz

    A level Biology: Post your doubts here!

    hey guys ! any predictions on paper 34 ? from which topics is it likely to come from?
  10. ShreeyaBeatz

    Mathematics: Post your doubts here!

    3 s.f teach me this ! f(x)=4-sinx - find the set of values of k for which the equation f(x)=k has no solution my xam is just 4 hrs away o_O
  11. ShreeyaBeatz

    Mathematics: Post your doubts here!

    The first two terms of a geometric progression are 1 and (1/3) tan^2 θ respectively, where 0 < θ < (1/2)π Find the set of values of θ for which the progression is convergent INSTANT HELP NEEDED !
  12. ShreeyaBeatz

    Mathematics: Post your doubts here!

    u did (a) :unsure:
  13. ShreeyaBeatz

    Mathematics: Post your doubts here!

    I meant Qno.7 (b)(i)
  14. ShreeyaBeatz

    Mathematics: Post your doubts here!

    9709/11/M/J/12 Question no 7(b)(i) how do we solve that "convergent"progression??
  15. ShreeyaBeatz

    A level Biology: Post your doubts here!

    9700/01/o/n/03 question 28 thank you :)
  16. ShreeyaBeatz

    Mathematics: Post your doubts here!

    hello, i need help on Question no 1 of 9709/11/m/j/10 (may june 2010 paper 11) Thank you please do reply!
  17. ShreeyaBeatz

    A level Biology: Post your doubts here!

    Hello there ! Just a little question Please reply this ! " The daily average intake of vitamin is about 25mg per day" What does this mean : A. 50% of the population should intake B. 95%of popn should intake The markscheme says that A is correct. I didnt understand. God be with you Please...
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