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Help needed in this paper.
Asalamoalikum WR WB
Need some help in the following questions of the above mentioned paper.
12,15,23,26
JazakAllah
Asalamoalikum...... anybody ?
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Help needed in this paper.
Asalamoalikum WR WB
Need some help in the following questions of the above mentioned paper.
12,15,23,26
JazakAllah
Thank you33:
overall R increases as now one resistor is in series wid 2 resistors in parallel
therefore overall I decreases....now watever the current is,X gets the whole of it while Y and Z get a half-half share,Thus, (since I is directly propotional to power keeping other factors constant) power to X increases whlie that to Y and Z decreases.(C)
resultant force will be zero as same force is applied on both equal charges due to uniform electric field. the charges have opposite sign so the forces cancel out each other.View attachment 12682
The answer is C. can anyone please tell me how...and whats the concept behind this question..?
PE = KE + WD? What is this formula? :S Thank you so much!14 i can't do
15 use the formula PE = KE + WD
so 2*9.81*3 = 0.5*2*v^2 * 5*7
58.86 = v^2 + 35
V^2 = 23.86
v= 4.88 which is 4.9 so answer is A
33 i just answered above
Oh yes! Thank you very muchQs. 14;
initial kinetic=2*final kinetic (how?? see the key sentence "rebounds vertically to half of its original height")
1/2 m*u^2=2*1/2*m*v^2
1/2=v^2/u^2
take square root both sides n C is the ans.=)
haha easy. spending time and short tempering will not help. its the game of conceptcan anyone PRETTY PLEASE! help me with q no 13 and 15 coz i spent at least 20 min thinkin bout these two but i couldnt solve them
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s09_qp_1.pdf
the ans for both of them is B
(curse those Bs!!)
Q5)Frequency: 3000 oscillations in a minute so , 3000/60sec= 50http://www.xtremepapers.com/papers/...nd AS Level/Physics (9702)/9702_w10_qp_11.pdf
Help, please! Q. 5, 7, 9, 13, 18, 24, 31, 37. I know they are quite a few, but please?
Q13) IS 20 x 3 - 5 x 2 - 10 x 2 =30Nmhttp://www.xtremepapers.com/papers/...nd AS Level/Physics (9702)/9702_w10_qp_11.pdf
Help, please! Q. 5, 7, 9, 13, 18, 24, 31, 37. I know they are quite a few, but please?
Q18)At what rate does the motor provide energy this part of the question is asking to find power and power=F x velocity so force is m1-m2 x g x vhttp://www.xtremepapers.com/papers/...nd AS Level/Physics (9702)/9702_w10_qp_11.pdf
Help, please! Q. 5, 7, 9, 13, 18, 24, 31, 37. I know they are quite a few, but please?
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s04_qp_1.pdf
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s04_er.pdf
Please can someone explain how to solve questions 9,18 and 26 of this paper. Thanks....
just one question how did you get x and z to be 45 degrees? :S
nope the answer is 10 GHzthe answer is A)5Ghz
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