The ability to manipulate complex numbers is important in the analysis of circuits and systems. In EE 210 you used complex numbers known as phasors to quickly determine the sinusoidal steady-state response of an electric circuit. Please carefully read Background Section B.1 in Lathi before attempting the following review problems. Except for the MATLAB questions, solve the equations by hand, do not use a calculator. To receive credit for the MATLAB questions, include an m-file with your name and section that shows the MATLAB commands used to answers parts 4 and 5.

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented

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