4. The column consists of a wooden post and a concrete footing, separated by a steel bearing plate. Find the maximum safe value of the axial load P if the working stresses are 1000 psi for wood and 450 psi for concrete. -12 in. 12 in

Compute the volume V and total surface area A of the complete circular ring whose square cross section is shown. Answers: V = i A = i 2 104 mm 81 mm 104 mm. 45° (106) mm³ (10³) mm²

Problem 1: Inputs: ● A = (3, 3) ft B = (9, 12) ft C=(3, 1) ft D = (9, 6) ft this Compute the centroid of the shaded region. For problem you must use the integral method. We will check our answers using another method in the next problem. a) Computex using integrals b) Compute y using integrals y A C y B D X