Afreezer compartment consists of a cubical cavity that is 2 m on a side. assume the bottom to be perfectly ulated (no heat flow). what is the minimum thickness of styrofoam insulation (k = 0.030 w/m/k) that must be applied to the top and side walls to ensure a heat load of less than 500 w, when the inner and outer surfaces are at -10 and 35c? (so the walls are made of styrofoam only)

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

Items are similar to the free issue items, but their access is limited. (clo5) a)-bin stock items free issue b)-bin stock controlled issue c)-critical or insurance spares d)-rebuildable spares e)-consumables