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Author Topic: ALL PHYSICS DOUBTS - POST HERE !!  (Read 230876 times)

Offline Helium

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1530 on: May 25, 2010, 08:27:47 pm »
Quote from: igext on May 25, 2010, 07:40:56 pm
the resultant of these 2 forces is actually the weight of the box or wht ever being lifted


ok so after drawing it for example with a scale 1 cm=2N

I  just have to measure T3 to find the resultant force, like u said weight of the box.

say yes to confrim.
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Offline WARRIOR

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1531 on: May 25, 2010, 08:28:50 pm »
Quote from: the golden girl on May 25, 2010, 08:25:03 pm
still didn't get it  :-[ ???

vibration is along the direction   <--> ( vibration )
                                          ------------------> ( direction)

you kno sound particles move forward and backward! so vibration is along the direction

opposite to transverse waves. 90 *  to direction
                                                 ^
 i dont have and arrow pointi down lol
                                            --------------------------------------->
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Offline Adzel

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1532 on: May 25, 2010, 08:28:59 pm »
Quote from: Ivo on May 25, 2010, 08:25:32 pm
Guys, this is really confusing for me:  describe and explain the function of a 'split ring' commutator in an electric motor.

It helps in contact of the coil and the rotation every half turn. Got it?...
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Offline Ivo

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1533 on: May 25, 2010, 08:29:23 pm »
Also, how do we describe the motor effect?  Do we say, if there is a current carrying wire, it causes a field, this interacts with the magnetic field, producing a force which is perpendicular to both the field of wire and magnetic field, according to FLHR.

Thanks in advance, your help is appreciated.
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Offline Ghost Of Highbury

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1534 on: May 25, 2010, 08:29:43 pm »
Quote from: the golden girl on May 25, 2010, 08:25:03 pm
still didn't get it  :-[ ???
The particle vibrates to and fro in the same direction as the wave direction..

Wave -------------------------->>>>

<--particle-->

here : http://paws.kettering.edu/~drussell/Demos/waves/wavemotion.html (the extreme left particles)

check how a single particle vibrates..
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Offline WARRIOR

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1535 on: May 25, 2010, 08:32:00 pm »
Quote from: Ivo on May 25, 2010, 08:29:23 pm
Also, how do we describe the motor effect?  Do we say, if there is a current carrying wire, it causes a field, this interacts with the magnetic field, producing a force which is perpendicular to both the field of wire and magnetic field, according to FLHR.

Thanks in advance, your help is appreciated.

YOU SAY

CURRENT  passes 90 * to  MAGNETIC FIELD  ...A FORCE IS OCCURED TO THE WIRE

but yeah what u said is perfect
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Offline The Golden Girl =D

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1536 on: May 25, 2010, 08:33:19 pm »
Quote from: A@di on May 25, 2010, 08:29:43 pm
The particle vibrates to and fro in the same direction as the wave direction..

Wave -------------------------->>>>

<--particle-->

here : http://paws.kettering.edu/~drussell/Demos/waves/wavemotion.html (the extreme left particles)

check how a single particle vibrates..

thx mate  ::)
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Offline $H00t!N& $t@r

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1537 on: May 25, 2010, 08:36:56 pm »
Quote from: Kimo Jesus on May 25, 2010, 08:21:53 pm
and the wave move straing caz angle of incidence is along the normal..pretend the reflractive surface is a miror
um.. i dont get this part  :-[

@Ivo: good example  ;)
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Offline the_grim_reaper

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1538 on: May 25, 2010, 08:39:11 pm »
People just pray to God that Physics P1 happens to be as easy as Chemistry P1!!!!!
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Offline Shazizzzle

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1539 on: May 25, 2010, 08:40:11 pm »
All Physics Doubts, post here!

You guys are Physics doubts? :P
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Offline WARRIOR

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1540 on: May 25, 2010, 08:40:25 pm »
Quote from: Shooting Star on May 25, 2010, 08:36:56 pm
um.. i dont get this part  :-[

@Ivo: good example  ;)

wave move in a straight * line caz the engle of incidence is along the normal ( 0 * )

when you come to do other questions like this . Pretened its a recatngle block mirror and you know how the arrow refracts when it  enters the block  refracts  towards the normal?? ya same thing

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Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1541 on: May 25, 2010, 08:41:37 pm »
Quote from: Helium on May 25, 2010, 08:27:47 pm

ok so after drawing it for example with a scale 1 cm=2N

I  just have to measure T3 to find the resultant force, like u said weight of the box.

say yes to confrim.

sorry for the delay man ! :\
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Offline The Golden Girl =D

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1542 on: May 25, 2010, 08:42:22 pm »
Q33 year june 2004
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Offline WARRIOR

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1543 on: May 25, 2010, 08:44:05 pm »
Quote from: ~VIN1094~ on May 25, 2010, 08:41:37 pm
sorry for the delay man ! :\

gr8 work man !! keep it up

+ rep ! u deserve it !
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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 Shazizzzle

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1544 on: May 25, 2010, 08:44:59 pm »
Quote from: the golden girl on May 25, 2010, 08:42:22 pm
Q33 year june 2004

A.

The longer vertical bar in a battery represents the +ve, and, from left to right, the terminals are -, +, -, +. A shows that.
also, it is just one loop, so series.
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