the 100 and 125 are on sperate lines due to a justification error they are ment to be below the underline (deviding the number on top) and secondly the rate of clime refers to the angle of attack so the max rate of climb is 44 degrees. i just found the velocity as it would usually ask for both
you need to talk about how it has effected the environment as in extracting the materials out of the ground (e.g. big mines) also the need of energy and the "coke" that needs to be produced for the blast furnaces. then talk about how bridgens have helped the environment as a road doesnt need to...
your right it is pritty easy actually firstly with a max power of 300 and a efficiency of 82% you need to find the "real power" 300 x 82 = 246kw
100
now finding the max velocity of the plane 275 x 246 = 541.2...
the stuff you learn in engineering is pritty cool and very practicle for engineering. and it is only usually boring if your not smart enough or dont try to understand it