Consider a simple monitoring application where we use two nodes nl and n2. Each node when sensing temperature that is higher than 40°C raises an alarm (by turning
its red light on for 30msec), and at the same time sends an alert message to the
other node which turns its green light on for 20 msec. Each node takes a sample of
temperature every 10 minute.
We need to implement this monitoring system in nesc. Write the required module,
header and Makefile files. Show the final overall wiring diagram.

Pp 4.1 design and implement a class called sphere that contains instance data that represents the sphere’s diameter. define the sphere constructor to accept and initialize the diameter and include getter and setter methods for the diameter. include methods that calculate and return the volume and surface area of the sphere (see pp 3.5 for the formulas). include a tostring method that returns a one-line description of the sphere. create a driver class called multisphere, whose main method instantiates and updates several sphere objects.

Suppose s, t, and w are strings that have already been created inside main. write a statement or statements, to be added to main, that will determine if the lengths of the three strings are in order by length, smallest to largest. that is, your code should determine if s is strictly shorter than t, and if t is strictly shorter than w. if these conditions hold your code should print (the boolean value) true. if not, your code should print false. (strictly means: no ties) example: if s, t, and w are "cat", "hats", and "skies" your code should print true - their lengths are 3-4-5; but if s, t, and w are "cats" "shirt", and "trust", then print false - their lengths are 4-5-5 enter your code in the box below

Facial expressions and gestures are examples of messages.