Physics: Post your doubts here!

[anastasia grey113]

y

you have to multiply it by the voltage of signal wave. you had 8KHz per volt so myltiplu by 3( i think it was) and add for max and minues for min

lol i dont remember the answers to this
but yes thats wut u had to do lol

 

[haithsoul]

lol i dont remember the answers to this
but yes thats wut u had to do lol

what was your answer for the final temperature of the ideal gas question?

 

[anastasia grey113]

what was your answer for the final temperature of the ideal gas question?

517 K
wbu?

 

[haithsoul]

y

517 K
wbu?

same i think it was 500 something

 

[haithsoul]

what

517 K
wbu?

about reason for the trolly amplitude decreasing?

 

[anastasia grey113]

what

about reason for the trolly amplitude decreasing?

well it was friction between the tyres and floor so it decreased since mechanical energy was being converted to heat
wut did u write?

 

[haithsoul]

ye

well it was friction between the tyres and floor so it decreased since mechanical energy was being converted to heat
wut did u write?

yes, the question also mentioned that the springs were always extended, so their was friction amongs their molecules right?

 

[anastasia grey113]

ye

yes, the question also mentioned that the springs were always extended, so their was friction amongs their molecules right?

lol idk i dint write in those terms
i just wrote abt friction i thought that as the trolley's tyres rubbed against the floor, friction was there.

 

[haithsoul]

yea

lol idk i dint write in those terms
i just wrote abt friction i thought that as the trolley's tyres rubbed against the floor, friction was there.

yeah i mentioned that as well. For the question about communication for 1 mark where it asked about time from max to min modulation what was the answer?

 

[amina1300]

How was 9702_42 everyone? Quite good for me!!

I messed up it was really different this time dont know what I'll get.

 

[amina1300]

w

hat did you get here? for final T

Couldn't get to that part time ran out

 

[amina1300]

you had to draw them in paraller or series.
4 was if i remember two parallel and one series
9 was two series and then those two are in parallel with the other one.

What value did you get for combined capacitance

 

[anastasia grey113]

What value did you get for combined capacitance

1.2 i think

 

[haithsoul]

Couldn't get to that part time ran out

what about the ampilfier last questions on how to connect a component while the gain is stable?

 

[haithsoul]

1.2 i think

i put 2.4 since its min to max, are you sure its 1.2

 

[amina1300]

What do you guys think the threshold will be this time?

 

[Holmes]

1.2 i think

Yes that's what I wrote but my friends say it was sth like 2.4 or what idk

 

[anastasia grey113]

i put 2.4 since its min to max, are you sure its 1.2

yh m talking abt the capacitance
v just had to do 1/C = 1/2 + 1/3

 

[anastasia grey113]

What do you guys think the threshold will be this time?

well the paper was kind of different and tricky
but still it was easy
it should be in the high 50s i suppose

 

[anastasia grey113]

Yes that's what I wrote but my friends say it was sth like 2.4 or what idk

2.4 how?
i discussed it with my friends
they all had 1.2