(this assignment could be done as a modification of the program in programming challenge 2.) write a program char asks rhe user for rhe name of a file. the program should display the contents of the file on the screen. each line of screen output should be preceded with a line number, followed by a colon. the line numbering should start at "i

Python

file=open("file_name",r) #Opening the file we are using

f1=file.readlines() #Read each line of the file and save it into f1 vector

for x in range(len(f1)): #walk through every line in vector f1 and print it  

print(x+1, ".",f1[x]) """x+1 because the index begin in 0 so we add 1, ":" colon, f1[x] to take the x line"""

hi

explanation:

unlike the threaded fasteners which are used to clamp the machine members, power screws are used to transmit power. common applications of power screws are: screw jacks: to lift weight. lead screw of lathe: for axial movement of tool and its precise positioning.