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Right

Thank you very much for the help haruspex and kuruman

But what this information has to do with "the water will still be flowing but eventually it will stop."? I mean even though the...

The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater...

The answer to this question is statements (i) and (ii) are correct. (i) I don't understand why this is corect. By "at maximum height"...

I would say to the right

Ah I see, so statement (i) is FALSE, the force must be downward. This matches the explanation in link in post#4 I thought the ball...

I see, so statement (ii) is TRUE Sorry I don't understand this. Do you mean the ball is moving against the wind so it is moving to the...

(i) Not really sure about this statement but my answer is TRUE because from the picture the air layers on the bottom part of the ball...

Thank you very much for the explanation fresh_42, PeroK, Gavran

$$ 27x^{18}+bx^9+70=(px^9+q)\cdot \sum_{n=0}^9 a_nx^n=\sum_{n=9}^{18} pa_{n-9}x^{n}+\sum_{n=0}^9 qa_nx^n $$ and therefore ##70=qa_0\, ...

If b, p and q are integers then from the post #9 we have: 70=qa0 ⇒ q∈{1,2,5,7,10,14,35,70} 27=pa9 ⇒ p∈{1,3,9,27}. 1/27 is the smallest...

Because only the ratio ##q/p## determines ##b##.

Why can we take ##p## to be 1?

Are ##b##, ##p##, ##q## natural numbers? Must the quotient polynomial have natural coefficients? If so, you have a one parameter family...