You are playing a video game under the following idealized conditions. the computer memory is unbounded and you have no time limit for finishing the game. the game board is the set of points in the plane with integer coordinates and time moves in discrete integer steps. there is a hidden submarine: you do not not know its location, you do not know its speed and you do not know its direction of motion. the speed and direction of motion do not change throughout the game. the speed is a natural number and the direction of motion is either up, down, left or right. for example, the submarine could start at (1,3) have speed 6 and move right. then at step 0 it is at (1, 3), at step 1 it is at (7, 3), at step 2 it is at (13, 3) and so on. at every step you get to zap a point: you enter the coordinates and if the submarine is at that point, at that time step, you will destroy it. of course, there is no point zapping a position before it gets there or after it leaves. give a strategy or scheme that is guaranteed to get the submarine at some nite stage. important : you do not know where it started, you do not not know its direction and you do not know its speed; you only know that the speed and direction do not change.

In this lab, you complete a prewritten c++ program for a carpenter who creates personalized house signs. the program is supposed to compute the price of any sign a customer orders, based on the following facts: the charge for all signs is a minimum of $35.00. the first five letters or numbers are included in the minimum charge; there is a $4 charge for each additional character. if the sign is made of oak, add $20.00. no charge is added for pine. black or white characters are included in the minimum charge; there is an additional $15 charge for gold-leaf lettering. instructions ensure the file named housesign.cppis open in the code editor. you need to declare variables for the following, and initialize them where specified: a variable for the cost of the sign initialized to 0.00 (charge). a variable for the number of characters initialized to 8 (numchars). a variable for the color of the characters initialized to "gold" (color). a variable for the wood type initialized to "oak" (woodtype). write the rest of the program using assignment statements and ifstatements as appropriate. the output statements are written for you. execute the program by clicking the run button. your output should be: the charge for this sign is $82. this is the code, // housesign.cpp - this program calculates prices for custom made signs. #include #include using namespace std; int main() { // this is the work done in the housekeeping() function // declare and initialize variables here // charge for this sign // color of characters in sign // number of characters in sign // type of wood // this is the work done in the detailloop() function // write assignment and if statements here // this is the work done in the endofjob() function // output charge for this sign cout < < "the charge for this sign is $" < < charge < < endl; return(0); }

Take a critical look at three gui applications you have used—for example, a spreadsheet, a word-processing program, and a game. describe how well each conforms to the gui design guidelines listed in this chapter.

The guy wire bd exerts on the telephone pole ac a force p directed along bd. knowing the p must have a 720-n component perpendicular to the pole ac, determine the magnitude of force p and its component along line ac.