FIR - High pass filter problem - a similar example is included.

This is one of the two DSP problems I posted earlier. I just solved the other one..this one is giving me a lot of grief. There is a similar problem with given solution included to be followed by the problem itselt. I've also noted the differences between the sample and the the actual problem (high pass vs. low pass, cutoff vs. cutin freq.) Desperately seeking help. Thank you.

Telecommunication system statistics question

A unit for a telecommunications system is to be designed so as to have a minimum availability of 0.9994. The MTTR (mean time to repair) for the unit is estimated to be 24 hours. the unit is to consist of (n) effectively identical elements in parallel, from a reliability point of veiw. if the hazard rate of each of the elements is 5x(10 to the power -5) per hour, estimate the minimum value of (n) which is needed if the unit is to meet the availability specification assuming that the elements are repaired only when the whole system fails.

Fourier Transform Pair(s)

Please see the attached file for full problem description.

Differential Equation; Complex Variable; Transfer Function; Homogeneous Solution

Transform the attached differential equation into a transfer function and find the homogeneous solution to the differential equation from the transfer function ...

Advantages of cable in providing internet over DSL,Satellite,Dial-up

Some pointers as to why cable internet is better than all the rest of the methods. Some history of the cable internet will be important.