1) find vc(t) (t > 0) in the circuit below if r = 1 k . 2) find vc(t) (t > 0) in the circuit below if r = 3 k . questions 1) which circuit (r = 1k or r = 3k ) is more damped? 2) is there a relation between the value of r and the damping of the circuit? if so, how are they related? 3) which circuit (r = 1k or r = 3k ) has a smaller settling time? 4) measure the time duration between subsequent zero crossings of the response for the r = 3k circuit. is it what you expected? prelab assignment carry out the theoretical analysis and computer simulation for each of the two problems. + .01 f r 20 mh 5u(-t) v r - vc

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length

An external consultant recommends that a plant installs a bank of capacitors for power factor correction. this will reduce the peak electrical demand charges by an average of 93 kw every month. the plant current pays $13 per kw in peak demand charges. the capacitor bank will include 223 kw of fixed capacitors, and 183 of variable capacitors. the fixed capacitors cost $59 per kw, and the variable capacitors will cost $65 per kw. the consultant charges 21% of the equipment costs to install the capacitors. because this project will reduce the demand for the electric utility, they are prepared to provide a one-time rebate of $42 per kw of reduced demand. what is the simple payback period for this project (in years)?