Question 2 A car suspension system consisting of a spring and viscous damper carries a mass of 250kg.
The damping coefficient, c, of the damper is 100Ns/m and the spring stiffness, k, is 640 N/m.
The road surface subjects the system to a sinusoidal force of 10N at an angular frequency of 2
rad/s.
a. Form a differential equation that represents the system.
(5 marks)

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater