The roof deck of the single story building is subjected to a dead plus live load of 125 lb./ft2. if the purlins are spaced 4 ft and the bents are spaced 25 ft apart, determine the distributed loading that acts along the purlin df, and the loadings that act on the bent at a, c d, and e.

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

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

An engine, weighing 3000 n, is supported on a pedestal mount. it has been observed that the engine induces vibration into the surrounding area through its pedestal at the maximum operating speed. determine the stiffness of the dynamic vibration absorber spring in (n/m) that will reduce the vibration when mounted on the pedestal. the magnitude of the exciting force is 250 n, and the amplitude of motion of the auxiliary mass is to be limited to 2 mm note: in this question type-in right numbers, no decimals, no fractions, no unit. approximate to right number if needed