6.7 write a matlab script (m-file) that executes the simulink simulation for the mechanical system in problem 6.6 for input frequencies ranging from = 1 rad/s (0.16 hz) to = 100 rad/s (15.92 hz) in increments of 1 rad/s. store the ratios of the output/input amplitudes but use only the last one-third of the simulation response data (the so-called steady-state response) for each input frequency [hint: to do this, compute the ratio xend∕xin by using the command max(x_end)/max(x_in) where x_end is the last one-third of the system response x(t)]. plot the output/input amplitude ratio vs. input frequency, and based on your plot, summarize how the mechanical system’s displacement response x(t) varies with input frequency this problem is an example of a system’s frequency response, where the system input is a periodic function (such as a sinusoidal input function).

Write a program that uses a random number generator to generate a two digit positive integer and allows the user to perform one or more of the following operations: a. double the number. b. reverse the digits of the number. c. raise the number to the power of 2, 3, or 4. d. sum the digits of the number. e. if the number is a two-digit number, then raise the first digit to the power of the second digit. f. if the number is a three-digit number and the last digit is less than or equal to 4, then raise the first two digits to the power of the last digit. after performing an operation if the number is less than 10, add 10 to the number. also, after each operation determine if the number is prime. each successive operation should be performed on the number generated by the last operation. your program should not contain any global variables and each of these operations must be implemented by a separate function. also, your program should be menu driven. 7. (fraction calculator) write a program that

Which argument is not a valid filter? does not equal this quarter filter by cell color all of these are valid filter arguments.

Arun is 5 years older than anu. five years ago, the ratio of their ages was 3: 2 . find their present age