multiple choice (2 Viewers)

[townie]

ARGH! I MISREAD 6.

i totally ignored "from the frame of reference of the vehicle"

*bangs head on table*

 

[hprintern]

Generally same as yours apart from 3. D, 6. A, 10. A, 11. C, and 14. B

exactly the same as mine

 

[shazzam]

d isn't the stationary observer, that's c

Fine, stationary observer viewing it in a mirror then.

Right, I shall stop. I bow to thee.

 

[smexy]

the answers are as follows
1 B
2 A
3 D
4 B
5 A
6 B
7 A
8 C
9 A
10 A
11 C
12 B
13 A
14 B
15 B

 

[gordo]

if the acceleration is constant, graph it, a curve yes
therefore the derrivative is a straight line
i.e b

 

[grimreaper]

well i guess i'll have to settle for 14/15 - now that i look at 6 again I've realised that if what I was saying was correct none of them would have been right

 

[Dash]

Could somone post up the paper?
Sounds like a generally well done exam... well done guys

 

[smexy]

did anyone else get 1.8 x 10^-7 for the parallel current carrying conductors question?

 

[grimreaper]

Yes I got 1.8 too... for all those questions that werent MC however I was worried about not putting the correct number of significant figures...

 

[paztaboy]

hey laurie. could you plz list the answers that you go for all the questions. thanks

 

[gordo]

hold on, the frame of referrence of the cart, keeps accelerating afte ru let go of the ball

so wouldn;t it be c
because the bball would seemingly be accelerating horizontally away from u??

 

[Nightcrawler]

shiT! i put d for q6 but now i see that its b
this is how i worked it out but it might be wrong
the vehicle is accelerating uniformly horizontally, say at an acceleration of 9.8m/s2, the same as gravity
the ball is also accelerating at 9.8 m/s2 downwards, so if you compare these two components, you'll get a linear relationship, so the answer is b for q6

 

[smexy]

well then that guy agrees with you too

 

[shazzam]

hahaha he probably means the multiple choice Laurie. Sif anyone would remember all their answers (with the exception of those with photographic memories)

 

[sub]

mine were:
1. B
2.A
3.D
4.B
5.A
6.B
7.A
8.C
9.A
10.A
11.D
12.B
13.A
14.B
15.B

 

[sub]

laurie why is 11 c?

 

[sgt]

lol all these answers arre just confusing me.....
where's a teachers answers cuz i'm sick of all these confusing lists

 

[sub]

sgt...close ur eyes...u dont have to look...

 

[sub]

i thought 11 would be d cos of the eddy current argument...

eddy currents in the tracks slow the train...therefore by the same argument induction cooktops also use this principle. well, it made sense to me for it to be d

howd u go overall tho?

 

[paztaboy]

can somebody explain why can't q 11 can't be d?