Unidirectional and continuous carbon fibers with a diameter of 6.5 micron are embedded within an epoxy that offers a yield point of 73 mpa. if the bond strength across the fiber-epoxy interface is 32 mpa, compute the minimum fiber length to guarantee that the fibers are conveying an optimum fraction of force that is applied to the composite. answer format: x. xx unit: mm

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?