Aliquid reactant (rho = 72 lbm/ft3 , μ = 0.0040 lbm/ft s) is pumped from a holding tank at atmospheric pressure through 2300 ft of 6" id steel pipe and into a reactor at an absolute pressure of 5.0 atm. the reactor is at a level 100 ft below the holding tank. the mass flow rate is 90,000 lbm/hr. • find the power (in hp) required for a 50% efficient pump.

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