Problem 3 In an FSK system using coherent detection, the signals s) and s2() representing binary symbols 1 and 0, respectively, are defined by ,2 Assuming that fe > Af, show that the correlation coefficient of the signals si(t) and s2(t) is approximately given by 1()8201) dr 0 sinc(2Ay.Tb T. 1C1) d a. What is the minimum value of frequency shift for which the signals si(t) and s2(t) are orthogonal? b. What is the value of Af that minimizes the average probability of symbol error? . For the value of Af obtained in part c, determine the increase in E/No required so that this FSK scheme has the same noise performance as a binary PSK scheme system, also using coherent detection

A palindrome is a number or a text phrase that reads the same backwards as forwards. For example, each of the following five-digit integers is a palindrome: 12321, 55555, 45554 and 11611. Write a C++ program that reads in a five-digit integer and determines whether it is a palindrome .

- June 12, 2021

Question: A palindrome is a number or a text phrase that reads the same backwards as forwards. For example, each of the following five-digit integers is a palindrome: 12321, 55555, 45554 and 11611. Write a C++ program that reads in a five-digit integer and determines whether it is a palindrome . Answer: Step 1 PROGRAMING CODE: #include <stdio.h> int main() { int n, a, b, c, d, e; int digit = 0; printf( "Enter one 5 digit number: \n" ); scanf( "%d", &n ); a = n / 10000; b = n / 1000 % 10; c = n / 100 % 10; d = n / 10 % 10; e = n % 10; if ( a == e && b == d ) { printf( "Palindrome!\n" ); } if ( a != e || b != d ) { printf( "Not a palindrome.. :(\n" ); } return 0; } PROGRAM SCREENSHOT: Step 2

QUESTION 6 (a) The bar shown in Figure Q2(a) is subjected to tensile load of 150 Kn. If the stress in the middle portions is limited to 160 N/mm², determine the diameter of the middle portion. Find also the length of the middle portion if the total elongation of the bar is to be 0.25 mm. E E = 2.0 + 105N/mm². (12 marks) 150 KN 10 cm DIA 10 cm DIA 150 KN 45 cm Figure Q6(a) (b) A brass bar, having cross-section area of 900 mm², is subjected to axial forces as shown in Figure Q2(b), in which AB = 0.6 m, BC = 0.8 m, and CD = 1.0 m. Find the total elongation of the bar. E = 1.0 + 105N/mm2 . (8 marks) Page 4 of 5 B D 40 KN 70 KN 20 KN 10 KN Figure Q6(b) (TOTAL = 20 MARKS)

- June 05, 2021

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- May 29, 2021

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A palindrome is a number or a text phrase that reads the same backwards as forwards. For example, each of the following five-digit integers is a palindrome: 12321, 55555, 45554 and 11611. Write a C++ program that reads in a five-digit integer and determines whether it is a palindrome .

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