Acid protonates the carboxylic acid derivative in nucleophilic acyl substitutions, making it less electrophilic.

A 1024-point FFT is applied on a signal sampled at 3.2KHz. The FFT components are 

A sampling rate change by a noninteger factor of 6/7 is implemented. Give the bandwidth of the digital filter to be used.

Why should we implement getters and setters rather than allow direct modification of instance variables?

Write the class header and the variable declarations for Athlete (an abstract class). All subclasses of Athlete must satisfy the requirements of the Competitive interface. Athlete has the following variables: name (String instance variable) salary (double instance variable) population (int class variable that keeps track of how many athletes exist; make sure it starts at 0) Do not write constructors or methods, just what is asked above. Proper syntax is still required.

What is the output of the following code snippet? Assume all necessary imports have been made. If there is a compiler/runtime error, please state which one it is and provide a reason for it. String[] animals = {“bird”, “rat”, “zebra”, “rattlesnake”, “bear”};Arrays.sort(animals);for (String a : animals) { System.out.print(a + ” “);}

Write a concrete method with protected visibility for Athlete called swapJersey. It receives one parameter of type Athlete (called player2), which indicates who the Athlete is swapping jerseys with. If player2’s salary is greater than that of the Athlete, the Athlete’s salary is increased by player2’s salary. If player2’s salary is less than or equal to that of the Athlete, the Athlete’s salary is set to player2’s salary.

Please read carefully: The remaining questions from this exam are all part of the same problem, divided into many smaller questions. You will be asked to write 1 interface and 2 classes: Competitive, Athlete, and Footballer (a child of Athlete). Each question will indicate the part and interface/class you will be working on. Do NOT write getters and setters unless otherwise indicated. You won’t need any that are not indicated (and you cannot use any that are not indicated). Do NOT write Javadocs. Do NOT add null-checks for name (variable will be introduced in next Q). All your constructors and methods should be visible to all classes unless otherwise noted in their description. All your instance variables and class variables should have the strictest visibility modifier. When asked for constructors or methods, do not repeat the class header or any other code. Constructors and setters must use parameter names that are the same as the related instance variable(s). You should use constructor chaining in all constructors where it can be properly applied. Your chaining must reduce the necessary code in the constructors as much as possible. Syntax, capitalization, and spelling matter. Canvas Tip for all Qs: Click on the dropdown that says “Paragraph” and switch to “Preformatted” to get a monospaced font – this can help in coding answers The questions begin below.

Older adults are more successful in suicide attempts than are younger people. 

Most suicides occur without warning.