Find the centroid of the thin plate bounded by the graphs of the functions g(x)=x2 and f(x)= x+6 with (density) δ=2 and M= area of the region covered by the plate. Type integers of simplied fractions.

Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?

The proportional limit is always greater than the yield strength for a material. a)-trune b)- false