IGCSE Physics 22/42 Watch

LuvDaStudiezz
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How were physics papers 22 and 42?
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chemistry igcse
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Really bad
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Crossover
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(Original post by LuvDaStudiezz)
How were physics papers 22 and 42?
What were the answers for momentum and magnetization and demagnetization? Overall did everybody's go bad? Predicted threshold???????
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dianciesylveon
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I felt like I did OK but people kept saying they got different answers which ruined my confidence lol :/
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nerdcry
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hard..... how do you calculate impulse from the car question @@
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lixiaolu
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What did people write for the Electricity question on power 100 watts.
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chemistry igcse
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(Original post by lixiaolu)
What did people write for the Electricity question on power 100 watts.
current was 4.18A
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LuvDaStudiezz
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(Original post by chemistry igcse)
current was 4.18A
I thought it was 8.3A

BC
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dianciesylveon
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I got 4.18A as well
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lixiaolu
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(Original post by LuvDaStudiezz)
I thought it was 8.3A

BC
I got 8.3A
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sheshenk
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what was the impulse? 3000Ns for me
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sheshenk
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8.3 A
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lixiaolu
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(Original post by sheshenk)
what was the impulse? 3000Ns for me
Yeah you are right
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Crossover
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(Original post by lixiaolu)
Yeah you are right
I wrote 3000Ns but many ppl wrote 27000 as impulse
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anushgaur
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(Original post by Crossover)
I wrote 3000Ns but many ppl wrote 27000 as impulse
yes i wrote 3000 Ns as well. the sad part is that this question's answer changes the answer for the next question as well. Lots of people say its 27000 Ns
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anushgaur
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what was your answer for the final velocity in the momentum question. 2.72 m/s or 0.5 m/s?
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anushgaur
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(Original post by dianciesylveon)
I got 4.18A as well
its 8.33 A
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Crossover
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(Original post by anushgaur)
yes i wrote 3000 Ns as well. the sad part is that this question's answer changes the answer for the next question as well. Lots of people say its 27000 Ns
So what is the right answer?!
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anushgaur
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(Original post by Crossover)
So what is the right answer?!
there's still debates going on between those two answers. i guess we'll only find out when the mark scheme is released. Hopefully its 3000 Ns
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anushgaur
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(Original post by Crossover)
What were the answers for momentum and magnetization and demagnetization? Overall did everybody's go bad? Predicted threshold???????
for magnetizing, u run direct current through the circuit
for demagnetizing, u run alternating current through the circuit
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