- Messages
- 65
- Reaction score
- 12
- Points
- 18
no 32, y the resultant force is zero ?thanks bro...MAY ALLAH REWARD U FOR THE HARD WORK AND SUCCEED U IN EVERYTHING.....
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
no 32, y the resultant force is zero ?thanks bro...MAY ALLAH REWARD U FOR THE HARD WORK AND SUCCEED U IN EVERYTHING.....
Yeah just checked that now :$Can't disagree with that buuuut the marking scheme says C. :|
And personally I'm confused because both seem so correct.
which paper??!no 32, y the resultant force is zero ?
q15) F=kv and F=mg are sameView attachment 12927
View attachment 12928
could someone please explain these to me asap! thank you!
thank you!q15) F=kv and F=mg are same
so kv=mg so v=mg/k
ke=1/2 m x v^2 substitute v and u get m^3 x g^2/2k^2
ur welcumthank you!
pls explain these ones:q15) F=kv and F=mg are same
so kv=mg so v=mg/k
ke=1/2 m x v^2 substitute v and u get m^3 x g^2/2k^2
Is this is all u can do..Where is november 2003..well ill tell u something....u made this thread so ur the one who must start to help..if u have any doubts ask..if u want to help, pls do...but dont act as if we work for u and that we must post every year..we did enogh job..if u want it go look for itWhere is november 03??????
nov_10_13: 2 cant help u in this question u r suppose to noe dem by heartpls explain these ones:
nov_10_13: 2, 12, 14(some explain this before but i didn't get it), 25(answer why not D), 31
june_11_12: 6(why not B), 16, 17, 29, 31
just one more paper after this INSHA ALAH
JAZAK ALLAH!
Which paper is this?Yeah just checked that now :$
I suppose if it comes in the exam, I'll just go with W =mg, so g = w/m :$
its my great idea that you guys are working on. if you don't wanna help then don't bother. i didn't beg you to do all papers. you did it with your own wish. stop crying now.Is this is all u can do..Where is november 2003..well ill tell u something....u made this thread so ur the one who must start to help..if u have any doubts ask..if u want to help, pls do...but dont act as if we work for u and that we must post every year..we did enogh job..if u want it go look for it
ooh the GREAT FATIMA ooohhh..now ill leave u to cry for help with your GREAT own idea ooohhits my great idea that you guys are working on. if you don't wanna help then don't bother. i didn't beg you to do all papers. you did it with your own wish. stop crying now.
In q.6 the reason u gave makes both A and B the correct ans. How to know that A is the correct one?November 2007
1-C
Use base units and equate both sides.
2-A
Learn the approximations.
3-B
Resultant force is always is opposite direction of its two components in the triangle of forces.
4-D
Precision is the closeness of measured values.
Accuracy is the closeness of measured values to actual value.
5-C
P = fv
f = ma and v = s/t
P = add up all the % uncertainties.
%P = 0.1 + 1 + 1.5 + .5
= 3.1 %
6-A
Due to zero error, the initial value of angle of deflection will be greater than zero at zero current.
7-A
Basic concept that g gravity is the acceleration of free fall.
8-D
The gradient of velocity-time graph is acceleration.
9-B
Area of distance above x axis - area of distance below x axis.
(0.5 * 3 * 30) - (.5 * 2 * 20)
= 25 m
10-D
Driving force - frictional force = ma
12- Fre = 0.6(4)
12- 0.6(4) = Fre
9.6 N = Fre
11- B
View attachment 12245
12-A
Since the parachutist is falling, height is decreasing over time.
Gradient of distance-time graph is speed.
13-C
Use head to tail method.
14-D
At midpoint, d = 0.8/2 = 0.4m
Moment = F*d
12 = F * 0.4
30 N = F
15-B
Initial K.E. - Final K.E.
(0.5* 1000 *25^2) - (0.5 * 1000 * 5^2)
300 000 J
300 kJ
16 - C
At max d, K.E. = minimum and elastic potential energy = maximum.
17-C
Density = mass/volume
Hence higher density means a higher mass, hence more no. of atoms.
So MpNp > MqNq
18-A
Height at surface =?
Pressure = density * g* h
100 000= 1030 * 9.81 * h
9.896 m = h1
Height at 450 kPa =?
450 000 = 1030 * 9.81 * h
44.535 = h2
Therefore height below surface = 44.535 - 9.896
=34.639 ~ 34.6m
19-B
Basic definition.
20- A
Strain energy = 1/2 * F * extension
= 0.5 * 25 * (0.4 - 0.2)
= 2.5 J
21- B
View attachment 12247
22- B
Learn the wavelengths.
23- B
Max speed = 2pii *a *f
f = ?
s = f* lamda
8 = f (50)
0.16 Hz = f
Max speed = 2pii * 2 * 0.16
=2 m/s
Max K.E. = .5 m* v^2 = 0.5 * 2 * 10^-3 * 2^2
= 4 mJ
24-D
x = lamda * D/ a
Hence increasing the lamda, increases x, that is the fringe separation.
25-B
d sin theta = n* lamda
At n = 3, theta = 45 degrees
d sin45 = 3*lamdaa
0.7 d = 3 lamda
and max angle = 90 , so n =?
d sin90 = n*lamdaa
d = n* lamda
Using the ratio method:
If 0.7d = 3 lamda
1 d =?
cross multiply and you get n as 4.25 hence rounding it off to 4th order.
26- C
Since electric field direction is from higher p.d./charge to lower p.d./charge the electron will be attracted towards the more positively charged plate (or direction) hence to the left.
27-D
Direction of electric field is away from positive charge.
28-B
E = V*Q
E/Q = V
29-D
P = V^2/R
P = 12^2/Rx and P = 6^2/Ry
Rx = 144/P and Ry = 36/P
Rx/Ry = 144/P divided by 36/P
Rx/Ry = 144/36 = 4
30-D
V = IR
6 = I (10 +10)
0.3 A = I
Q = It
0.3 * 60 = 18 C
31-A
View attachment 12248
32-A
Basic concept of L.D.R.; when light intensity increases, resistance decreases hence voltage decreases too.
33-D
V in = R1/T.R. * V out
4.8 = 10/25 * V out
4.8* 25/10 = V out
12 = V out
34-D
Using the ratio method:
If 1.1 V - 0.7 m
? - 0.9 m
x = 0.9* 1.1/ .7
x = 1.4 V
35-A
The readings won't change because the set up is the same.
36- C
Charge is same since proton no. is same, but mass differs since no. of neutrons differs.
37- C
Basic concept.
38-C
The alpha scattering experiment proves the small size of a gold nucleus.
39-B
In a beta emission, the nucleon no. remains same but the proton no. increases by 1
For 2 beta emissions, proton no will increase by 2 hence 40 +2 = 42
40-A
Momentum = mv, greater m = greater momentum.
hence the particle with the greatest mass from all the choices is A, an alpha particle.
november 2011 V2 X_X, number 32which paper??!
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now