Gauss-jordan method requires more iterations to find the solution than gauss- siedel. a)true b)- false

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

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

Which of the following are not basic engineering materials categories? (mark all that apply) a)- metals b)- alkaloids c)- ceramics and glasses d)- polymers e)- composites f)- semiconductors