Calculating power factor. Sinusoidal voltage and current at the same frequency can be represented as complex numbers. Complex power is the product of complex voltage and the complex conjugate of the complex current. Power factor is the cosine of the angle of the complex power and measures the efficiency of power transfer from a source to a load circuit. Complete the function below to calculate power factor. Function Save Reset MATLAB DocumentationOpens in new tab function powerFactor = CalculatePowerFactor( complexVoltage, complexCurrent) % : Calculate power factor given complex voltage % and current. % Inputs: complexVoltage - complex number representing sinusoidal voltage % complexCurrent - complex number representing sinusoidal current % % Outputs: powerFactor - cosine of the angle of complex power % Assign complexPower to product of complex voltage and conjugate of % complex current complexPower = 0; % FIXME % Assign powerAngle to angle of complex power powerAngle = 0; % FIXME % Assign powerFactor to cosine of powerAngle; powerFactor = 1; % FIXME end 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Code to call your function

Computer security/cybersecurity1) each of the following code fragments contains a number of security vulnerabilities. for each fragment, identify these security vulnerabilities and, for each vulnerability, discuss at least one way that it could be improved. note that in your discussion of how each vulnerability could be improved, you do not need to re-write a new version of the program in c; simply discuss your solution, either in pseudocode or in 1-2 sentences.a) /* file descriptor leak */#include #include int main(int argc, char *argv[]){ char *filepath = argv[0]; char *shellpath = argv[1]; file *passwords; passwords = fopen(filepath, "r"); /* read the password and do something with it */ /* . . */ /* fork and execute alternative shell */ execl(shellpath, "shell", null); }b)#include /* assume the following function is written for an electronic storefront. the user will enter the id of the item to be ordered, as well as the quantity of units that they would like to purchase. the program will then lookup the price for the price for the item using a predefined function, and return the total cost of the order.*/int gettotalcost(){ char itemid[9]; int price, unitsordered, cost; printf(" enter the 9-digit id of the item to be ordered: "); scanf("%s", & itemid); /* lookup the price according to the itemid */ price = getpricebyid(itemid); printf(" enter the quantity of units to be ordered: "); scanf("%d", & unitsordered); cost = price * unitsordered; return cost; }c)#include /* the following function is intended to return a user's full name by concatenating the user's first and last name into a single string and then returning that string. */char *getfullname(char *firstname, char *lastname, int max_len){ char fullname[max_len]; strcpy(fullname, firstname); strcat(fullname, " "); strcat(fullname, lastname); return fullname; }d)#include /* the following code snippet runs through the list of cli arguments entered and displays them to the console. */int main(int argc, char *argv[]){ int i; printf("you've entered the following arguments: "); for(i = 0; i < argc; i++){ print(argv[i]); printf("\n"); } /* */}

Is the process of organizing data to reduce redundancy. a. normalization b. primary keying c. specifying relationships d. duplication

You are to write a series of steps that anyone could follow to solve the following three problems: 1. even odd a. assume that someone tells you a number (an integer number) b. you hear the number and respond with the word even or odd 2. average a. assume that someone tells you between 3 and 5 numeric values. b. you hear the numbers and respond with the average is some number 3. dog or cat a. explain to a child the differences between a dog and a cat. b. your explanation could be used by a child or anyone to distinguish the difference between a dog and a cat