(50 points) in this problem, we will use our knowledge of maps and lists tobuild a spell-checking program. the classmaincontains the starter codefor this problem; your task is to complete this program. you are providedwith a le titledwords. txt, which contains a list of valid english words, one per line. your program should take as input a line of space-separatedwords representing a sentence. (no punctuation or capitalization will beused; all characters will be either the space character or a lowercase en-glish letter). you should then output a list of words in the input that aremisspelled, each on their own line, followed by a newline

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)