Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
Helium:
--- 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
--- End quote ---
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.
WARRIOR:
--- Quote from: the golden girl on May 25, 2010, 08:25:03 pm ---still didn't get it :-[ ???
--- End quote ---
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
--------------------------------------->
Adzel:
--- 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.
--- End quote ---
It helps in contact of the coil and the rotation every half turn. Got it?...
Ivo:
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.
Ghost Of Highbury:
--- Quote from: the golden girl on May 25, 2010, 08:25:03 pm ---still didn't get it :-[ ???
--- End quote ---
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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