refer to graph between weight percent magnesium (atomic percentage magnesium) versus temperature as given below
EXPERT ANSWER
a) To satisfy shaded regions, find values of ωn and ζ by estimating it from figure. b) Use Kα = α = 2.Find values for K and KI so that the poles of closed-loop system should be in the shaded regions. EXPERT ANSWER
A plane wall with surface temperature 350C is attached with straight rectangular fins( k =235 W/m K). The fins are exposed to an ambient air condition of 25C and the convection heat transfer coefficient is 154 W/m2. Each fin has a length of 50mm, a base of 5 mm thick and a width of 100mm. …
EXPERT ANSWER 1. Here it is given thatUse W14×61Fy = 50ksiNow, design strength of column AB Pu = 2658.45kDesign Strength of column AB = 2658.45k2. Let us first design column AB and then Base plate design must be doneAssuming both ends fixed. The effective length is 0.65×16 10.4 feet.Using LRFD, the factored load is Pu=1.2×350+1.6×450=1,140kips …
EXPERT ANSWER The two methods to compute the bandwidth of an FM station are by using the modulation index and by using the Carson’s rule. 1) The formula for bandwidth calculation using modulation index is given as where, N is the number of significant sidebands, and fm is the highest modulating frequency Assuming a modulation index …
EXPERT ANSWER A.Rankine’s Earth Pressure Theory. The Rankine’s theory assumes that there is no wall friction (δ=0) , the ground and failure surfaces are straight planes, and that the resultant force acts parallel to the backfill slope. Rankine’s Theory At Rest Earth Pressure: The at-rest earth pressure coefficient (Ko) is applicable for determining the active …