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    what does W stand for in 5090_w10_ms_61.

    Whats thee difference between 5090_w10_ms_61. and 5090_s10_ms_61? What do s and w stand for? i was having a little problem so can anyone tell me? thanx in advance.
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    Biology; Chemistry; Physics: Post your doubts here!

    guys can someone please explain to me what a npn transistor and a capacitor is? what is a bistable circuit and its use? and what is an astable circuit? we have finished the syllabus but we havent done it, teachers say that it doesnt come often and so they dont teach it, but just to be on the...
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    Biology; Chemistry; Physics: Post your doubts here!

    I personally dont think u can get a 7 mark question with WHAT but if the case is this then explain what is the pyramid of biomass,the mass at each level what it indicates and then u could give and eg. of a written food chain and draw the labelled pyramid that should be enuf for the 7 marks ...
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    Biology; Chemistry; Physics: Post your doubts here!

    can someone please tell me what to write if they give you a question in bio of what is a pyramid of biomass of SEVEN marks? :mad:
  5. N

    Biology; Chemistry; Physics: Post your doubts here!

    y es, i get a little confused with the terminologies, but im working on it. but, i would really like if you did explain it to me! :D
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    Biology; Chemistry; Physics: Post your doubts here!

    guys, im really having trouble with the last bio chapter, the heredity one.... im having trouble in codominance and also in making crosses. can someone please help me with it?
  7. N

    Biology; Chemistry; Physics: Post your doubts here!

    this may sound like an extremely lame question but how do we know if a salt is acidic of basic?
  8. N

    Biology; Chemistry; Physics: Post your doubts here!

    thanx!
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    Biology; Chemistry; Physics: Post your doubts here!

    if we increase the temp, pressure of add the catalyst or surface area, the reaction will only speed up. but if we increase the quantity and the concentration, the products would be doubled, right? for instance if in one reaction with H2SO4 we used 1 mole of magnesium and 1mol/dm3 H2SO4 but in...
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    Biology; Chemistry; Physics: Post your doubts here!

    guys, did the bio paper pattern change slightly? because in sec b, the previous papers, we were given a choice of 3 or 4 questions and had to do 3. and now in section b, we have to do 2 compulsory questions and in section c are given a choice of one out of two? is it so? or maybe i downloaded...
  11. N

    Biology; Chemistry; Physics: Post your doubts here!

    guys are there any notes available for the chapter radioactivity and electronics according to syllabus?
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    Biology; Chemistry; Physics: Post your doubts here!

    what i think is that fig 1.b will produce more current. because the more magnetic flied lines the coil cuts the stronger the current. Also, in fig 1.a the magnetic field lines would be attracted by the opp poles, thus, less magnetic field lines will be able to cut coil, thus less current would...
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    Biology; Chemistry; Physics: Post your doubts here!

    thank you!
  14. N

    Biology; Chemistry; Physics: Post your doubts here!

    thank you soooooo much!
  15. N

    Biology; Chemistry; Physics: Post your doubts here!

    Um, guys, quick question. Cu doesnt react with water right? How does it form Cu(OH)2 then?
  16. N

    Maths, Addmaths and Statistics: Post your doubts here!

    Hey..... can someone tell me, the tips and tricks of doing the number pattern question? And i am extremely sorry for not posting the question, the truth is, ive been really busy with test again!
  17. N

    Maths, Addmaths and Statistics: Post your doubts here!

    ok... ill tell you the question.
  18. N

    Maths, Addmaths and Statistics: Post your doubts here!

    hey, can anyone please tell me how to find the maximum value of x and the minimum value of y of chapter sets? Please?
  19. N

    Biology; Chemistry; Physics: Post your doubts here!

    thanx for helping you guys! :)
  20. N

    Maths, Addmaths and Statistics: Post your doubts here!

    the method we've been taught, can you tell if its ok? we draw a tangent which touches the curve at a single point and then, we note the coordinates where the tangent cuts the x and y axis and then use the formula y2-y1/x2-x1? if its correct, i dont know why my gradient comes either one or two...
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