« previous next »
Pages: 1 ... 146 147 [148] 149 150 ... 160   Go Down

Author Topic: ALL PHYSICS DOUBTS - POST HERE !!  (Read 247588 times)

Offline Ghost Of Highbury

  • O_o_O lala!
  • SF Farseer
  • *******
  • Posts: 4096
  • Reputation: 41428
  • Gender: Male
  • Namaskaram!
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2205 on: May 26, 2010, 08:47:51 pm »
Quote from: Shazizzzle on May 26, 2010, 08:44:38 pm
If you're not a 'Physics Doubt', you don't belong here. :P

hahaha!!
Logged
divine intervention!

Offline Weaam

  • Mad Alice
  • SF Geek
  • ****
  • Posts: 411
  • Reputation: 2264
  • Gender: Female
  • What if I spoke alien, fluently? O.o
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2206 on: May 26, 2010, 08:48:38 pm »
Quote from: A@di on May 26, 2010, 08:44:05 pm
3 minuts = 180s

energy = 40*180 = 7200J

change in temp = 5.9
250g = 0.25Kg
E = m*c*t

7200/0.25*5.9 = 4881J/kgK

Thaaanks a gajillion!

Could u also do from the same year Q4 part b?
Sorry for the trouble  :-[
Logged
- The man who smiles when things go wrong has thought of someone to blame it on. - Robert Bloch.
-I saw weird stuff in that place last night. Weird, strange, sick, twisted, eerie, godless, evil stuff... and I went in. - Homer
+ Rep me if i have been of any assistance to you ;D

Offline Adzel

  • SF Citizen
  • ***
  • Posts: 230
  • Reputation: 272
  • ALLAH IS THE GREATEST
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2207 on: May 26, 2010, 08:49:11 pm »
Quote from: Shazizzzle on May 26, 2010, 08:44:38 pm
If you're not a 'Physics Doubt', you don't belong here. :P

Im not a 'Physics Doubt', Im a Physics student  :P

Logged

Offline Adzel

  • SF Citizen
  • ***
  • Posts: 230
  • Reputation: 272
  • ALLAH IS THE GREATEST
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2208 on: May 26, 2010, 08:50:53 pm »
GOOD LUCK TO ALL INSHAALLAH
Logged

Offline 8T

  • SF Citizen
  • ***
  • Posts: 148
  • Reputation: 162
  • Gender: Female
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2209 on: May 26, 2010, 08:52:12 pm »
Quote from: weaam on May 26, 2010, 08:48:38 pm
Thaaanks a gajillion!

Could u also do from the same year Q4 part b?
Sorry for the trouble  :-[
Weaan Dnt yew have the ms...?
There..
air molecules hit dust particles in all directions/move it in all directions B1
just as likely to be up as down
Logged
Know how to ask. There is nothing more difficult for some people, nor for others, easier.

Offline Ghost Of Highbury

  • O_o_O lala!
  • SF Farseer
  • *******
  • Posts: 4096
  • Reputation: 41428
  • Gender: Male
  • Namaskaram!
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2210 on: May 26, 2010, 08:54:03 pm »
Quote from: weaam on May 26, 2010, 08:48:38 pm
Thaaanks a gajillion!

Could u also do from the same year Q4 part b?
Sorry for the trouble  :-[

The large number of air particles constantly collide with the dust particles in all directions which keeps most of them away from the ground

PS : however, as the ms says, its an equal probability that the dust particles will collide and fall, we ignore the ambiguity here.
Logged
divine intervention!

Offline Weaam

  • Mad Alice
  • SF Geek
  • ****
  • Posts: 411
  • Reputation: 2264
  • Gender: Female
  • What if I spoke alien, fluently? O.o
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2211 on: May 26, 2010, 08:54:53 pm »
Quote from: 8T on May 26, 2010, 08:52:12 pm
Weaan Dnt yew have the ms...?
There..
air molecules hit dust particles in all directions/move it in all directions B1
just as likely to be up as down
That kinda doesnt make sense "8T", thats why im asking!
Plus i wanna know how the diagram is supposed to look like!
I have a feeling im gunna screw up physics so baad tmr!
Logged
- The man who smiles when things go wrong has thought of someone to blame it on. - Robert Bloch.
-I saw weird stuff in that place last night. Weird, strange, sick, twisted, eerie, godless, evil stuff... and I went in. - Homer
+ Rep me if i have been of any assistance to you ;D

Offline Ashe

  • Newbie
  • *
  • Posts: 5
  • Reputation: 26
  • Gender: Female
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2212 on: May 26, 2010, 08:55:17 pm »
Quote from: Adzel on May 26, 2010, 08:33:22 pm
Small current swiches on large current....

thanks :) is that all? is there any like... safety reason? or smthn?
Logged

Offline Weaam

  • Mad Alice
  • SF Geek
  • ****
  • Posts: 411
  • Reputation: 2264
  • Gender: Female
  • What if I spoke alien, fluently? O.o
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2213 on: May 26, 2010, 08:56:02 pm »
Quote from: A@di on May 26, 2010, 08:54:03 pm
The large number of air particles constantly collide with the dust particles in all directions which keeps most of them away from the ground

PS : however, as the ms says, its an equal probability that the dust particles will collide and fall, we ignore the ambiguity here.
Umm ... how is the diagram supposed to look like..?
Logged
- The man who smiles when things go wrong has thought of someone to blame it on. - Robert Bloch.
-I saw weird stuff in that place last night. Weird, strange, sick, twisted, eerie, godless, evil stuff... and I went in. - Homer
+ Rep me if i have been of any assistance to you ;D

6394

  • Guest
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2214 on: May 26, 2010, 08:56:34 pm »
gud lk 2 u ppl[/b][/color][/size]
Logged

Offline Helium

  • SF Citizen
  • ***
  • Posts: 216
  • Reputation: 672
  • Knowledge is light
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2215 on: May 26, 2010, 08:57:32 pm »
Quote from: Adzel on May 26, 2010, 08:44:21 pm
Why don't you check the Mark Scheme  :-\

marking scheme sometimes just gives answer,
some people want to know why or how ???
Logged
Aiming for the top

Offline Ghost Of Highbury

  • O_o_O lala!
  • SF Farseer
  • *******
  • Posts: 4096
  • Reputation: 41428
  • Gender: Male
  • Namaskaram!
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2216 on: May 26, 2010, 08:58:06 pm »
Quote from: weaam on May 26, 2010, 08:56:02 pm
Umm ... how is the diagram supposed to look like..?

They haven't asked for the diagram in that subpart. Its not required, and drawing the huge no. of air particles colliding with dust particles is insane, just imagine that there is a huge no. of collisions going on which keeps the dust from falling down..
Logged
divine intervention!

Offline eastrimx

  • Newbie
  • *
  • Posts: 3
  • Reputation: 13
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2217 on: May 26, 2010, 09:01:16 pm »
can someone help me with the question 4 in october/nov 2008 paper 3 first variant?

http://www.freeexampapers.us/IGCSE/Physics/CIE/2008%20Nov/0625_w08_ms_3.pdf

Logged

Offline Vin

  • SF V.I.P
  • ********
  • Posts: 7914
  • Reputation: 52609
  • Gender: Male
    • Theory of Life - A new skew.
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2218 on: May 26, 2010, 09:01:55 pm »
Quote from: Helium on May 26, 2010, 08:57:32 pm
marking scheme sometimes just gives answer,
some people want to know why or how ???

https://studentforums.biz/index.php/topic,6468.msg228261.html#msg228261
Logged

Offline Weaam

  • Mad Alice
  • SF Geek
  • ****
  • Posts: 411
  • Reputation: 2264
  • Gender: Female
  • What if I spoke alien, fluently? O.o
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2219 on: May 26, 2010, 09:02:08 pm »
Quote from: A@di on May 26, 2010, 08:58:06 pm
They haven't asked for the diagram in that subpart. Its not required, and drawing the huge no. of air particles colliding with dust particles is insane, just imagine that there is a huge no. of collisions going on which keeps the dust from falling down..
Actually it says, explain why the dust particles have not fallen to the floor. you may DRAW A LABELLED DIAGRAM to help your explanation...
I wonder what kind of diagram are we meant to draw and label here..
Logged
- The man who smiles when things go wrong has thought of someone to blame it on. - Robert Bloch.
-I saw weird stuff in that place last night. Weird, strange, sick, twisted, eerie, godless, evil stuff... and I went in. - Homer
+ Rep me if i have been of any assistance to you ;D
Pages: 1 ... 146 147 [148] 149 150 ... 160   Go Up
« previous next »