Which are examples of copyrighted online materials? Check all that apply. - an article from an Internet magazine
-lyrics for a song written in the 1800s
-photos taken by a student on his blog
-a video game that is free for anyone to copy
-an illustration sold by an artist on her website
-an excerpt from a novel published in 1913

Convert and simplify the following sentences to conjunctive normal form (cnf): (a) (p → (q → r)) → (p → (r → q)) (b) (p ∧ q) → (¬p ↔ q) (c) ((p → q) ∧ ¬q) → ¬p

Duplicating objects creates copies that a. move differently than the original object b. erase the original object c. look and act like the original object d. add events to a game

[a] create a class called “cycle” which has two instance integer variables as properties, “numberofwheels” and “weight.” create a constructor with two parameters, using the same variable names in the parameter list. assign each variable to numberofwheels” and “weight” respectively. write a separate application to test the class and display its properties. note: do not change the names of the instance variables or the variables listed in the constructor’s parameter list. [b] edit your class cycle by adding a default constructor which will assign the default values of 100 to represent the numberofwheels, and 1000 to represent the weight, by invoking a call to the other constructor. modify your application created in [a] to test the class.