Trace the backtracking + unit propagation + atmost algorithm for finding an answer set of the program p(a) : - not p(b). p(b) : - not p(a). q(a). : q(b) : - p(x); not r(x). note that the signature of the program above contains only two constants: a and b. remember to ground the program before applying the search algorithm.

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges

Measuring the distance between two trees, you measure that there are 75.5 steps between the two trees. give an estimate of the unit of measurement of one step in meters and give an estimate of what you think its uncertainty is. give the distance that separates the trees in meters as well as feet/inches and round to the correct amount of significant digits. what would you say are the uncertainties for the these two distances