An accelerometer has a damping ratio of 0.5 and a natural frequency of 18,000 hz. it is used to sense the relative displacement of a beam to which it is attached. if an impact to the beam imparts a vibration at 4500 hz, (a) estimate the dynamic error and phase shift in the accelerometer output. (b) estimate its resonance frequency.

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis

What is the main objective of using reheat rankine cycle?