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P1 CIE physics doubts

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dodo:
sorry what's the value for the pi plz
and what's pi????????????/

nid404:
pi radians = 180 degrees

one whole period corresponds to 2pi radians or 360 degrees...
For constructive interference they have to be in phase
For destructive interference they have to be out of phase...and for minima to have a value of zero...they should have a phase diff of pi or all odd multiples of pi

sweetie:

--- Quote from: astarmathsandphysics on April 26, 2010, 12:03:20 am ---10 approach speed=u1+u2
separation speed=v2-v1
they are equal for elastic collisions  D
11.res for both particles using F=ma
for 2g particle 2g-T=2a (1)
for 6g particle T-6=6a (2)
(1) +(2) 2g-6=8a so a/(2*9.8-6)/8=1.7 B
32)1/R=1/100+1/10+1/10+1/10+1/10+1/10+1/10=61/100
R=100/61 B


--- End quote ---

Thank You  :)
but i just wanted 2 know how do we know that the wires r connected in parallel in Q32????

nid404:

--- Quote from: sweetie on April 26, 2010, 05:44:54 pm ---Thank You  :)
but i just wanted 2 know how do we know that the wires r connected in parallel in Q32????

--- End quote ---

yes all of them parallel to each other

dodo:
hey agian am really sorry but how did u get 18.7and 11.2?????????????????? sorrrrrrrrrrrrrrrrrrrrrrrrrrrryyyyyyyyyyyyyyyyyyyyyyyy

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