Physics 5054

[Silent Hunter]

D ?

 

[rogue94]

i dont remember the option no. ...but it was most definitely the option that stated that acceleration decreased from 10 to 0

 

[no.mercy]

it is from 10 to 0 no doubt

 

[Arslanjaved]

in p2 what was the volume of the particle coming in qustion 3?

 

[vishal]

It was 6 Cm3 .....hope iam correct:..... Hey plzzz tell me what were the energy conversions in q2 of p2?????? And also what was da reason y the two temperature differences varied in question 11 of sec b in p2?????? Plzzzz answer my questions.........

 

[likosp]

in p2 what was the volume of the particle coming in qustion 3?

which question wass this one i dun remeber the qstn..... 8)

 

[Arslanjaved]

but why dont we add the ATM in the pressure of liquid?

 

[likosp]

ohhh now i remember the answer was 6 cm3 by the formula p1v1 = p2v2
ans we had to supp. that temp. was constant.

 

[likosp]

but why dont we add the ATM in the pressure of liquid?

it didnt mater if you added or not because since it would be added on both sides the answer should come the same if the correct working is done....

 

[littlecloud11]

it was chemical energy to gravitational potential energy + heat (i think)
and as for the temp difference its because initially as the water temp. rises the difference with the surrounding temp. increases, so heat is lost more rapidly to the surrounding and the water temp. rises slowly afterward. @ vishal

 

[Ayesha Navaid]

but why dont we add the ATM in the pressure of liquid?

it didnt mater if you added or not because since it would be added on both sides the answer should come the same if the correct working is done....

no....the atmospheric pressure is added in the pressure under water only if it was needed..
otherwise in that question the answer was 6cm3 and we were not supposed to add ATM.....

 

[Firebender]

wth? the mcq about measuring tape or rule DID NOT mention meter rule it just said rule. besides, a measuring tape would give you much better measurment as there is no chance of alignment error because the end of the measurement tape has a hook. THEY CAN BOTH BE RIGHT.

Also, there was no right answer in MCQ 1. someone should email CIE about this and post a reply on here.

 

[RaTeDRSuPeRsTaR]

Well, it was mentioned that a STRAIGHT pipe need to be measured so metre rule is more feasible...moreover they've also provided the hint by giving the length 80cm..C'mon..u must have done it right....

 

[Ayesha Navaid]

rule is supposed to be the one that can measure a metre...

 

[Firebender]

but measuring tape can also measure a meter very accurately. i've been to the metal works in gizri, they use measuring tape with the hook for measuring straight pipes.

im losing so many marks... :fool:

 

[Ayesha Navaid]

but measuring tape can also measure a meter very accurately. i've been to the metal works in gizri, they use measuring tape with the hook for measuring straight pipes.

im losing so many marks... :fool:

just chill....you cant change anything.
just concentrate on next papers...

 

[no.mercy]

the volume was 6 cm3
and the thing which was kept constant was temperature

 

[criplerslash]

question 1 in p1 was correct

the formula for latent heat is mass multiplied specific latent heat

where:

latent heat is j/kg
mass is kg

kg multiplied j/kg

the 2 kgs cancel out and only j remains

 

[abcd888]

what was the answer to the mcq in which it was asking for least pressuse exerted on ground.was it the tire or heel?

 

[Rampag3r]

Omg. Wasn't it Most Pressure? Wth.