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  1. S

    Maths D 22

    Yeah I tried doing that at first too. Didn't read the consequent parts of the question. So I was left with 3 unknowns, af, height if small triangle and height of big triangle :/
  2. S

    Maths D 22

    It was a rectangle, divided in half. Each side had a right angle, so I divided that in half, formed a hypotenuse and used the tan rule to find AF...which means I took the half of the rectangle as a square..ok wrong move. How'd u find it?
  3. S

    Maths D 22

    How was AF 7? :o I did tan45= AF/6 and got 6 cm as its value :/
  4. S

    General paper discussion

    Yeah so? :p I never said it wasn't...but the question also alluded to the fact that he fell from a plank or something..I remember it made a reference to how his PE was maximum at the top and that he had no kinetic energy AT THE START
  5. S

    General paper discussion

    Ya so he was gaining kinetic energy as he was falling. At the top of the plank, his KE was zero as I've mentioned already, so his PE had to convert into KE
  6. S

    General paper discussion

    As he was falling into the pool, he was gaining kinetic energy. At the highest point, his kinetic energy was 0 and PE was maximum. As he was falling, that PE was being converted to kinetic energy. But due to air resistance or something his KE was converted to heat energy. As a greater amount of...
  7. S

    General paper discussion

    How were your bio exams?
  8. S

    General paper discussion

    What no. It was GPE --> KE--> TE
  9. S

    General paper discussion

    How was bio p1? Got any answers wrong :)0
  10. S

    General paper discussion

    The person slowed down which meant kinetic energy was being converted into heat energy
  11. S

    Biology; Chemistry; Physics: Post your doubts here!

    It's A cause the seed without the testa receives sufficient water while the water in the other two test tubes might have been hindered by the presence of testas in the dish
  12. S

    Biology; Chemistry; Physics: Post your doubts here!

    So the bolus travels without a medium to carry it? Ok got it :p
  13. S

    Biology; Chemistry; Physics: Post your doubts here!

    ? I know that, but where does the food as a whole travel? In the oesophagus/stonechats and deudenom I mean? I know how water is used as the solvent but is plasma the specific medium?
  14. S

    Biology; Chemistry; Physics: Post your doubts here!

    I meant in the oesophagus/ deudenom. It's absorbed by the capillaries of the villus/ileum from the plasma of the hepatic artery/capillary or what? :/
  15. S

    Biology; Chemistry; Physics: Post your doubts here!

    Okay so I'm actually really confused. Where does the food travel in the gut? It's in the plasma na?
  16. S

    Biology; Chemistry; Physics: Post your doubts here!

    Isn't it the other way round? They move by fiffusion if they're concentration in the capillaries is higher than in the villi :p
  17. S

    Biology; Chemistry; Physics: Post your doubts here!

    tall and short are the two distinct groups? plus its a bar chart so it has to be discontinuous variation right? does hieight always have both discontinious and continuous variation? under what circumstances is there only one type of v?
  18. S

    Biology; Chemistry; Physics: Post your doubts here!

    the longitudinal muscles contract in the region where the bolus is, and in the part of the gut right before the bolus, the circular muscles contract and the longitudinal relax
  19. S

    Biology; Chemistry; Physics: Post your doubts here!

    but wont hot water denature the enzymes in the microbes? i still dont get q40. what two distinct groups of offsprings? how do a heterozygous and a homozygous recessive produce two clearcut offsprings? their ratio will be 1:1 so theyre either tall or short...is that it?
  20. S

    Biology; Chemistry; Physics: Post your doubts here!

    how on earth are we even supposed to know the answer to q26?
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