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Chemistry and Physics AS paper 12 MCQS
(11) Here is the equation for this question: F - R = ma. F = The force used to accelerate the body R = Resistive force (Friction) m = Total mass a = acceleration The accelerating force is provided by the 2kg mass. Hence, F = (2 x 9.81) = 19.62N 19.62 - 6 = 10a a = 1.362 m/s (34) The... -
Chemistry and Physics AS paper 12 MCQS
The answer is C There is constant phase difference along the line RS (Since the waves are coherent) and therefore, there will be no interference. -
AS Physics P1 MCQs Preparation Thread.
Thank you for your reply.. I haven't understood qn no. 13, could you please show me the working? For qn no. 31, I found the rate of flow as t = Q/I = (1.6 x 10^-19) / 4.8 = 3.3 x 10^-20. That is not correct right? -
AS Physics P1 MCQs Preparation Thread.
I'm reposting this.. anyone?? -
AS Physics P1 MCQs Preparation Thread.
I need some help with a few questions.. please explain the solution. http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20%289702%29/9702_w10_qp_11.pdf Qn no. 4, 8, 13, 31 The questions I asked look pretty simple.. but I just can't think of what to... -
AS Physics P1 MCQs Preparation Thread.
Omg.. I thought I was in the chemistry thread!! Anyways, it helped me revise a bit of chemistry :P -
AS Physics P1 MCQs Preparation Thread.
(9) Ethanoic acid is a weak acid so it wont ionise completely. Sodium hydroxide is an alkali so it doesn't produce H+. Sulphuric acid has 2 H+. So answer is B. Nitric acid is a strong acid and produces one H+ (26) As you can see, there are two intermediates formed in the process. Hence, the... -
P1 MCQ's preparation thread for chemistry ONLY!!!!
(5) HCl is polar and therefore, there are forces of attraction between H+ and Cl-. Ideal gases do not have forces of attraction! (15) The balanced equation is 2Ca(NO3)2 ----> 2CaO + 4NO2 + O2 No. of moles of Ca(NO3)2 = 8.2/164 = 0.05 The mole ratio of Ca(NO3)2 to Oxygen is 2 : 1. Hence, no of... -
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P1 MCQ's preparation thread for chemistry ONLY!!!!
I need some help: http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s10_qp_11.pdf Qn no. 5 and 21 For qn no 29, why can't the answer be D? Someone please explain the solution.. I'll appreciate it. Thanks -
AS Physics P1 MCQs Preparation Thread.
http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20%289702%29/9702_s09_qp_1.pdf Could anyone please explain no. 11? I don't understand why P is less than R.. since the body is underwater, isn't P supposed to be greater than R?? -
Chemistry and Physics AS paper 12 MCQS
That makes sense.. thanks! syed1995 -
Chemistry and Physics AS paper 12 MCQS
Helloo! My papers are going on well bruv.. just left with two multiple choice papers.. then party time!! :) Hope yours are going on well too.. No. 16.. *punch me in the face* I was thinking of something else.. it was so simple. No. 21.. perfectly understood.. thanks! No. 28.. I'll let you know... -
Chemistry and Physics AS paper 12 MCQS
Please help me with the questions below.. http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20%289701%29/9701_s12_qp_11.pdf Question no. 16, 21, 28 I'll appreciate an explanation.. thanks! -
Stat v. 62
Its was 4 marks.. so you'll get around 2 marks hopefully. Sorry.. I don't remember what I got in the first part -
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Stat v. 62
Yeah.. hopefully. Ohh.. don't worry, its just 3 marks :) -
Stat v. 62
Ahh yeah.. I knew I had done something wrong in that question. But I got the value for P(2) as 4.75 Anways, that's the only question (so far) that I have messed up in.. -
Stat v. 62
I used a different approach. Mean = np = 96 Variance = (np)q = (96)q 96 q = 32 q = 1/3 p = 2/3 Mean = np 96 = n(2/3) n = 144 :) -
Stat v. 62
I got the value of n as 144 and k as 6. Is that right?