Physics 41...How'd it go?

[midhat_moon]

sorry sister

its alright brother

 

[Otaiba13]

wasnt the power loss = 2.4 x10^-3 - 1996 = 404 ?

i.e. 404 W ???

yeah im definitely sure it was something beginning with 4

 

[SkyPilotage]

wasnt the power loss = 2.4 x10^-3 - 1996 = 404 ?

i.e. 404 W ???

I think I got the same answer, yes.

 

[walkthetalk]

AOA
How many marks was the power loss question btw? i messed up on that one..I found the time taken for the given mass to boil it was like 1.6 mins..then i found the difference between the 2 times and then i dont really know what i did but do u think tht's a valid method..And for the decay q i used N=Ne not A will i lose a mark for that? and what were the 2 reasons? and ufff i didnt convert temp to Kelvin! just praying for a good grade.....ALso last one for the 2 magnets in MRI what were we supposed to write?!

 

[user]

SkyPilotage for that finding the resistance one...how did u find Vmean...it was (4 + 2.4 ) / 2?

i did this..and i was like no...square them and then divide by 2 and then square root like similar to how we find rms..

 

[nerdybookworm]

I think I got the same answer, yes.

nope it wasnt sumfin lyk 404..i got diff i dun remember wat i did..:/

 

[bestgirl]

what was the answer to which wire experiences greater force if greater current in wire B?

 

[earthling]

what was the answer to which wire experiences greater force if greater current in wire B?

I think it was wire A ...because wire B would have a stronger magnetic filed and hence a stronger force pulls wire A.

 

[bestgirl]

I think it was wire A ...because wire B would have a stronger magnetic filed and hence a stronger force pulls wire A.

okay thanks!

 

[SkyPilotage]

I think it was wire A ...because wire B would have a stronger magnetic filed and hence a stronger force pulls wire A.

Acually, they both experience the SAME magnitude of forces.
If you want to understand more, check November 42 Question 5 b) !

 

[earthling]

Acually, they both experience the SAME magnitude of forces.
If you want to understand more, check November 42 Question 5 b) !

U didn't mention what year! xD

 

[SkyPilotage]

U didn't mention what year! xD

09 sorry , excuse me!