Author Topic: ALL PHYSICS DOUBTS - POST HERE !!  (Read 197672 times)

Offline WARRIOR

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #795 on: May 19, 2010, 12:06:37 pm »
ooooooooh thank you very much both of you i get it now :O
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Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #796 on: May 19, 2010, 12:10:11 pm »
Energy Transferred = Power * Time

18.75J..
or 18.75W per second.

hey jus a doubt .. isnt Watt already Joule/second ??

Offline J.Darren

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #797 on: May 19, 2010, 12:32:43 pm »
hey jus a doubt .. isnt Watt already Joule/second ??
Yes, as Watt = Work done (J) / Time (s)
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Offline WARRIOR

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #798 on: May 19, 2010, 04:15:45 pm »
from where do we get p = v^2/r
NO secrets to SUCCESS , it is the result of 1.HARD WORK 2.GOOD PREPARATION 3.LEARNING FROM FAILURE
But it ain't how hard you hit; it's about how hard you can get hit, and keep moving forward-Balboa

Offline Ghost Of Highbury

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #799 on: May 19, 2010, 04:22:07 pm »
hey jus a doubt .. isnt Watt already Joule/second ??

yess..it is, the ms says W, so i rote 18.75W
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Offline Ghost Of Highbury

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #800 on: May 19, 2010, 04:23:40 pm »
from where do we get p = v^2/r


p = i^2*r

p = v*i

v = ir

p = i^2r..
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Offline WARRIOR

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #801 on: May 19, 2010, 04:26:57 pm »
p = i^2*r

p = v*i

v = ir

p = i^2r..

I said P = V^2  /   R... NOT

P = I^2 X R
NO secrets to SUCCESS , it is the result of 1.HARD WORK 2.GOOD PREPARATION 3.LEARNING FROM FAILURE
But it ain't how hard you hit; it's about how hard you can get hit, and keep moving forward-Balboa

Offline Ghost Of Highbury

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #802 on: May 19, 2010, 04:29:44 pm »
I said P = V^2  /   R... NOT

P = I^2 X R

my bad, maybe that wasnt for me..
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Offline Ghost Of Highbury

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #803 on: May 19, 2010, 04:33:43 pm »
I said P = V^2  /   R... NOT

P = I^2 X R

p = v*i

v = ir

i = v/r

p = v*(v/r)

p = v^2/r
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Offline WARRIOR

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #804 on: May 19, 2010, 05:08:56 pm »
daymn u got that by urself?
NO secrets to SUCCESS , it is the result of 1.HARD WORK 2.GOOD PREPARATION 3.LEARNING FROM FAILURE
But it ain't how hard you hit; it's about how hard you can get hit, and keep moving forward-Balboa

Offline Ghost Of Highbury

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #805 on: May 19, 2010, 05:13:26 pm »
huh?

its simple formula mixed here and there..

u cud use all the formulas in other ones to get new ones..
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Offline WARRIOR

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #806 on: May 19, 2010, 05:16:00 pm »
huh?

its simple formula mixed here and there..

u cud use all the formulas in other ones to get new ones..
yea i understand

anwyya thanks :)
NO secrets to SUCCESS , it is the result of 1.HARD WORK 2.GOOD PREPARATION 3.LEARNING FROM FAILURE
But it ain't how hard you hit; it's about how hard you can get hit, and keep moving forward-Balboa

Offline Ghost Of Highbury

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #807 on: May 19, 2010, 05:16:54 pm »
no problem..
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Offline WARRIOR

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NO secrets to SUCCESS , it is the result of 1.HARD WORK 2.GOOD PREPARATION 3.LEARNING FROM FAILURE
But it ain't how hard you hit; it's about how hard you can get hit, and keep moving forward-Balboa

Offline J.Darren

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #809 on: May 19, 2010, 05:55:42 pm »
http://www.freeexampapers.us/IGCSE/Physics/CIE/2009%20Jun/0625_s09_qp_3.pdf


6 (b) (2)

15000?
The area has no impact on the pressure when in a liquid, the pressure would be the same as 6 b i, 30,000 Pa.
Do not go where the path may lead. Go instead where there is no path and leave a trail.