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Amr Fouad:

--- Quote from: ruby92 on April 20, 2010, 07:32:10 pm ---the ultimate tensile stress is a point before the fracture/breaking point.where the materia "gives" or "yields'??
is this right?

--- End quote ---

nope..only the first part is right..UTS is NOT the yield point..the yield point is the point where plastic deformation starts...UTS is simply the stress where the material breaks..

ruby92:
what wld a displacement position graph for a longitudnal wave look like?
if anyone has notes on superposition and resonance particularly explaining the wavelenght and lenght if you could post it here it wld be realli helpful  :)

~ A.F ~:

--- Quote from: ruby92 on April 23, 2010, 05:50:32 pm ---what wld a displacement position graph for a longitudnal wave look like?
if anyone has notes on superposition and resonance particularly explaining the wavelenght and lenght if you could post it here it wld be realli helpful  :)

--- End quote ---

Graph is an exact duplicate of the one for transverse wave

Notes: http://www.s-cool.co.uk/alevel/physics.html   go to oscillations and waves part

ruby92:
@A.F ; it doesn't have much on resonance  ???

O/N 2001 paper1
Q 2 and 15

astarmathsandphysics:
2 hours

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