Physics 11, Discussions, views and rages here ;)

[MOMO123123]

i wrote ductility but many of my friends said it was spring constant!

E=Fl/Ae=k(l/A).. so yeah it depends on spring constant

 

[Agassi Cazaubon]

E=Fl/Ae=k(l/A).. so yeah it depends on spring constant

That equation say what each letter means

 

[PoIsOngAlLeRy]

Awww that's really very sad to hear. feel sorry for you. But you don't need to worry because you can give physics again in next session along with your A2. your grade will not be effected if your all other exams went well, even if it gets effected it doesn't matter for your future studies in uni. forget it as a bad dream and plan well for ahead. Good luck.

aww..thnx...buh the thing is...this was a repeat ...i gave my a2 already this session..thts the only reason y i stayed long enough to finsh the exm...buh its kay..i m ovr it....inshalllah i will do well. ..plz pray for me thou.anywayz...i have alreadyy been accepted in a university bac home in canada.....thnx again thou n good luck to u too

 

[MOMO123123]

That equation say what each letter means

E=(force x length)/(area x extension) = spring constant (length/area)
since force/extension = spring constant

 

[anushey]

why cant it be uttimate tensile stress???

E=FL/Ae and F/a is stress.

 

[toobeerajpanchoo]

can anyone plzz post or scan any papers of physics chemistry and mathematics of june 2012.....plzzzz anyone as i know that the exam are over...i wanna work some 2012 questions

 

[xxxtoughxxx]

as far as i remember da question was wat depends on da young modulus not wut young modulus depends on........so i said ultimate tensile stress bec it directly depends on it ....duno not sure

 

[1357913579]

as far as i remember da question was wat depends on da young modulus not wut young modulus depends on........so i said ultimate tensile stress bec it directly depends on it ....duno not sure

same is what i though INSHAALLAH we'll be correct and also i was thinking same like what you said,
actually paper was easy but it was tricky which means lots of people thinking og high marks will lose more than what they think and gt willl be low as 30 or even more
i did a silly mistake in the question of where they ask what does force over extention represent its obviously spring constant but then as the curve not obeying hookes llaw so i marked young modulus which is wrong
was was the answer to that what elase is needed to find the curretnt kirochoff f1st law or voltage and all that that?

 

[Agassi Cazaubon]

same is what i though INSHAALLAH we'll be correct and also i was thinking same like what you said,
actually paper was easy but it was tricky which means lots of people thinking og high marks will lose more than what they think and gt willl be low as 30 or even more
i did a silly mistake in the question of where they ask what does force over extention represent its obviously spring constant but then as the curve not obeying hookes llaw so i marked young modulus which is wrong
was was the answer to that what elase is needed to find the curretnt kirochoff f1st law or voltage and all that that?

The answer is spring constant. I didn't put it but that's the answer

 

[xxxtoughxxx]

same is what i though INSHAALLAH we'll be correct and also i was thinking same like what you said,
actually paper was easy but it was tricky which means lots of people thinking og high marks will lose more than what they think and gt willl be low as 30 or even more
i did a silly mistake in the question of where they ask what does force over extention represent its obviously spring constant but then as the curve not obeying hookes llaw so i marked young modulus which is wrong
was was the answer to that what elase is needed to find the curretnt kirochoff f1st law or voltage and all that that?

isA hopefuuly .....um not sure about da curve bein low nah i think it might even be 35 or sth x_X bec its easy if u compare it wiv previous exams and dier GT was 32 or somethin like that....for that question i said its kirchoff 1st law nd all ma frndz said dat too

 

[xxxtoughxxx]

The answer is spring constant. I didn't put it but that's the answer

did u ask a teacher? well if da question was wat does young modulus depend on the answer is spring constant but it its wat depends on young modulud its ultimate tensile stress.....datz wat i think

 

[anushey]

okay,wat was the answer of the man and pulley question.i did 6 but i was confused b/w 6 and 13.

 

[Agassi Cazaubon]

okay,wat was the answer of the man and pulley question.i did 6 but i was confused b/w 6 and 13.

6 and 13 ? How'd you get that

 

[geek101]

okay,wat was the answer of the man and pulley question.i did 6 but i was confused b/w 6 and 13.

i got 19

 

[Agassi Cazaubon]

Anyway I got 8.. what the hell did you guys do to get your answers ?

 

[Agassi Cazaubon]

If you do mechanics,the answer is really simple to get! Its 13! Sorry if i broke some of your hearts! lol

How'd you get that ? didn't they say to take g=10

 

[anushey]

i got 13 first which was simple.K.E=P.E and the height was 9.but then i got confused and used mechanics to find the common acceleration which i got 6.so i used the formula v2=u2 +2as to get the speed that i got exactly 6. how did u guys do it??

 

[Agassi Cazaubon]

i got 13 first which was simple.K.E=P.E and the height was 9.but then i got confused and used mechanics to find the common acceleration which i got 6.so i used the formula v2=u2 +2as to get the speed that i got exactly 6. how did u guys do it??

Yea ur right.. I calcualted to and if the height was 9 it'd be 6 as acceleration was 2.. but wasn't the height 18m ? Did I read something wrong

 

[xxxtoughxxx]

i got 6 too.....height was 9 mate

 

[xxxtoughxxx]

Yea ur right.. I calcualted to and if the height was 9 it'd be 6 as acceleration was 2.. but wasn't the height 18m ? Did I read something wrong

its not readin now i remember the total h was 18 but he said until da man nd the other thingy were at the same level...so 9