physics paper 42 expected gt and discussion

[Princess Raven]

How did you find the velocity? V*q/m=1/2v^2, right?

ln 2/(2.8*365*24*3600)

Yup

 

[Princess Raven]

How did you find the velocity? V*q/m=1/2v^2, right?

ln 2/(2.8*365*24*3600)

For the coaxial cable what was the material made up of?

 

[Distillator]

Ln(2)/half life but u have to change the half life from years to seconds

Lol obviously i did. But i guess but im dead sure i considered efficiency.

 

[Ahmed Aqdam]

For the coaxial cable what was the material made up of?

Copper.

 

[Distillator]

For the coaxial cable what was the material made up of?

Copper

 

[anonymous1122]

Copper

What was the answer of section b q1 part1?
The pd calculation?

 

[Princess Raven]

What was the answer of section b q1 part1?
The pd calculation?

6

 

[anonymous1122]

6

And do we had to add or subtract the above values in q1 3rd part? Reading on newton metre?
And in charged particle question how did you calculate V which was further used in calculating velocity?

 

[Princess Raven]

What v? And subtract the answer was 24.5

And do we had to add or subtract the above values in q1 3rd part? Reading on newton metre?
And in charged particle question how did you calculate V which was further used in calculating velocity?

 

[anonymous1122]

What v? And subtract the answer was 24.5

It was electric potential that we had to determine using graph?

 

[Princess Raven]

I think u had just subtract the two values, at each surface.. I don't know for sure tho

It was electric potential that we had to determine using graph?

 

[Afzal1]

I think u had just subtract the two values, at each surface.. I don't know for sure tho

thats the way to do it... it was around 340 or so im not sure...

 

[Omar Haider]

I put adding for Q1 b. because both centripetal force and gravitational force act inwards, so 24.6+0.084 = 24.7N. And I got 432g for the nuclear question as well and 3.3-3.35 years for the part after that.

 

[Dr Death]

If the GT gets hat low im gonna and up with an A*

 

[aka abdul]

6

how did u calculate it 6 ?

 

[PhoebeBuffay]

I put adding for Q1 b. because both centripetal force and gravitational force act inwards, so 24.6+0.084 = 24.7N. And I got 432g for the nuclear question as well and 3.3-3.35 years for the part after that.

i got 3.3 as well ^_^
And no you had to subtract, I'm pretty sure!

 

[Princess Raven]

Yeah sorry it was 3.25 not 3.52

I put adding for Q1 b. because both centripetal force and gravitational force act inwards, so 24.6+0.084 = 24.7N. And I got 432g for the nuclear question as well and 3.3-3.35 years for the part after that.

 

[Princess Raven]

I do not rmr

how did u calculate it 6 ?

 

[anonymous1122]

What were uses for copper braid in section b?

 

[Omar Haider]

how did u calculate it 6 ?

You use the potential divider formula. For 121.5 ohms, the total voltage in the first segment is (121.5/121.5 + 120)*2000mV which gives you like 1006mV and then for the second part of the circuit (5000/5000+5000)*2000mV which gives you 1000mV. So 1006-1000 = 6mV