A system consisting of two bodies and three Spring so may be set into free vibrations .
Find the nature frequencies of this system
and the amplitude ratio of the movements
of mass1 and mass2 for each frequeney, mass1= 600kg,
mass2 = 100kg, k1 = 120KN/m, K2 = 90 kN/m, K3 =60 kN/m.​

Liquid flows at steady state at a rate of 2 lb/'s through a pump, which operates to raise the elevation of the liquid 100 ft from control volume inlet to exit. the liquid specific enthalpy at the inlet is 40.09 btu/lb and at the exit is 40.94 btub. the pump requires 3 btu/s of power to operate. if kinetic energy effects are negligible and gravitational acceleration is 32.174 tt/s, the heat transfer rate associated with this steady state process is most closely 1)-2,02 btu/s from the liquid to the surroundings 2)-3.98 btu/s from the surroundings to the liquid. 3)-4.96 btu/s from the surroundings to the liquid. 4)-1.04 btu/s from the liquid to the surroundings.