Technician a says that the oil control ring scrapes oil off the cylinder wall with each downward piston stroke. technician b says that a typical oil control ring consists of two separate pieces. who is right?

a. technician b only
b. both technicians a and b wrong answer
c. technician a only
d. neither technician a nor b
p. s "both"is wrong

Im doing this last minute and literally none of my neighbors or people that my dad works with use excel so if anyone could me make up an example

The volume v and paper surface area a of a conical paper cup are given by where r is the radius of the base of the cone and h is the height of the cone. a. by eliminating h, obtain the expression for a as a function of r and v. b. create a user-de ned function that accepts r as the only argument and computes a for a given value of v. declare v to be global within the function. c. for v ! 10 in.3 , use the function with the fminbnd function to compute the value of r that minimizes the area a. what is the corresponding value of the height h? investigate the sensitivity of the solution by plotting v versus r. how much can r vary about its optimal value before the area increases 10 percent above its minimum value?

Create a file called favorite_foods, and list your favorite foods, entering five or six or more. press enter after each favorite food so it appears on its own line (make certain you also press enter after the final food item). after the file is created, add two more foods you like that are not on the list (press enter after the final food item). view the list of foods to make certain the two items you added appear at the end of the list