Convert the analog voltage E(t) = 2sin4πt mV into a discrete time signal. Specifically, use sample time increments of a. 1/8 second b. 1/5 second c. 1/3 second d. 1/21 second use a data set of 128 points. Plot 4 seconds of each series as a function of time. Discuss apparent differences between the discrete representations of the analog signal.

In a unit cell of fcc structure, indicate the position of one of the tetrahedral interstitial sites by plotting the corresponding tetrahedron. do the same for one of the octahedral interstitial sites (in a separate fcc unit cell). mark the positions of all the tetrahedral and octahedral interstitial sites in the unit cells. how many equivalent tetrahedral sites and how many equivalent octahedral sites are contained in a fcc unit cell, respectively. what is the coordination number for a tetrahedral site and what is the coordination number for an octahedral site?