1.Two 10 wedges of negligible weight are used to move and position the 400 lb block knowing that the coefficient of static friction is .25 at all surfaces of contact determine the smallest force P that should be applied as shown to one of the wedges.
2.What is a working Excel VBA function to perform the Runge-Kutta method for a system of multiple equations?
3.A barge has the trapezoid chape. It is 22 m long into paper. If the total weight of barge and cargo is 350 tons, what is the draft "h" of the barge when floating in seawater?
4.A ballon weighing 3.5 lb is 6 ft in diameter. if filled with hydrogen at 18 psia and 60 degrees F and released, at what U.S standard altitud will it be neutral?