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leosco1995 on page 41 u can find all my queries in yellow and in REd colour plsss yar help me out man
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no one is helpingplz any one explian these http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_11.pdf
Q.5 and Q.24
where can i find may/june 2002,2001 and oct/nov 2001 past papers and marking shemes pls
Thumbs UP!!! you are right!!http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_11.pdf
q5.
this is how i got the answer, im not sure of my way thou
Frequency: 3000 oscillations in a min, ie, 3000/60sec= 50
now Time period= 1/50= 0.02
and so for time base, as this is for one full wave, divide it by 2, 0.02/2= 0.01
Answer is B. My answer is correct but i dont know about my method.
:\
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s03_qp_1.pdf
in qs 3 the resultant is the line joining the two vectors and completing the triangle, or is the line coming from the middle of the vectors. Are both of these the resultants or not.
in qs 15, why is A the answer. The graph is decreasing so we know from a fact that air resistance increases with time so shouldnt it not be air resistance as a decreasing curve is being shown. HElp required in these questions please
but the graph shows a decreasing gradient.For question 3, use the paralellogram law i.e. the line coming from middle the two vectors, be careful about the angle u would use!
In Q15. When falling in air resistance, the graph of FORCE Y clearly indicates that resultant force has to be zero as the ball is reaching a constant velocity (Newton's first law).. As for FORCE X, it cannot be upthrust as upthrust in air negligible but since velocity was initially increasing, air resistance will also be increasing and when velocity is constant, so does air resistance.
Note that we have to calculate the POWER in this question.
See, the thing you need to understand is that air resistance varies according to the velocity of the object.but the graph shows a decreasing gradient.
aah...c...keep dat formula in mind while solving such Questns... n(lambda)=d.sin(theta)View attachment 12388
the answers B. But how? any description will be appreciated.thank you.
and can anyone tell the effects of changing any one one value will have on other values in d.sin(teta)=n.lamda
Q14 use moments and the pivot as the rear wheel
so 10* 30k =20x which gives 15K (B)
Q35
answer is A because in tthe question it said there are 2 resistors so as one increases in resistance it requires more voltage so voltage across other one decreases
using formula V/E=R1/R1+R2 to test values you will get something similar to graph A
and if you did question 26 can you please show your working
can u xplain properly ki y did u divide by 2?Thumbs UP!!! you are right!!
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