Translate the following pseudocode for randomly permuting the characters in a string into a Python Program.

Read a word.
Repeat len(word) times
Pick a random position i in the word, but not the last position.
Pick a random position j> i in the word.
Swap the letters at positions j and i
Print the word.

To swap the letters, construct substrings and then replace the string like so:

first + wordj] +middle+ wordli] last

Robots with telescoping arms are sometimes used to perform tasks (e.g., welding or placing screws) where access may be difficult for other robotic types. during a test run, a robot arm is programmed to extend according to the relationship r = 3 + 0.5cos(4θ) and the arm rotates according to the relationship θ=−π4t2+πt , where r is in feet, θ is in radians, and t is in seconds. use a computer program to plot the path of tip a in x and y coordinates for 0 ≤ t ≤ 4s.

Two technicians are discussing the common u-joint. technician a says its input and output speeds should be equal. technician b says that it normally has two yokes. which technician is correct?

How would you categorize the software that runs on mobile devices? break down these apps into at least three basic categories and give an example of each.