Given a digital filter with the following numerator and denominator coefficient vectors, respec-
tively:
num= 0.8831, 1.6234, 2.5118, 1.6234, 0.8831, and
den= 1., 1.7342, 2.5277, 1.5502, 0.7998.
find the poles and zeros of the filter transfer function. is the filter stable?
plot the magnitude and phase of h(ejω) of the filter. hence, determine the type of filter
(lp, hp, bp, or notch) it represents.
determine the 3-db bandwidth of the filter.
if the sampling period is t = 10 µsec, determine the 3-db bandwidth in hz.

i don't know that i agree with that but what's the question ?

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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hope this !