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An engineer is using DSC to determine the fiber volume fraction of a carbon fiber / epoxy prepreg. It is known that the heat of reaction of the pure, fresh epoxy resin (no carbon fibers, no curing) is 525 J/g. The DSC response of a fresh sample of prepreg (no curing) is given below.
A) Calculate the fiber volume fraction of the prepreg.
B) From the DSC response can you determine if there is more than one type of curing agent? Explain why or why not.
3) One of the materials given below is a pure thermoplastic polymer while one is the same polymer with a filler. Given the viscosity data below, which one contains the filler? Briefly explain.
B) What is the zero shear viscosity values for the materials given above?
C) Is either material a Newtonian fluid under any conditions? Explain.
Work: In its technical sense, work is the product of force and distance, and work is done only when a force causes movement. We can see this by the formula: Work = Force x
#question how i write a assignment about it..
si el numero atomico del sodio es 11 y su numero de masa es 22,diga¿cuantos electrones,protones y neutrones respectivamente,tiene su atomo neutro?
A seat of EMF is in sequence with a resistor R1 and with a parallel combination of two other resistors R2 and R3. R2 is a changeable resistor whose resistance can be changed just b
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A 3Kg bar of aluminum has to be heated from 25 degrees Celsius to 75 degrees Celsius. how many calories are needed to achieve this temperature increase?
project of class12,,to demonstrate electrostatics shielding
mass of body= 4 kg is dropped form height= 45 m Calculate the kinetic energy just before hitting the ground
Can an electron be obtained (or come out) from the nucleus? Yes, electron having energy higher than the ordinary atomic electron might be come out of the nucleus because of be
Find the value of g by free fall method.
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