A bracket ABCD with circular cross section AB, a horizontal arm BC parallel to the x0 axis and a horizontal arm CD parallel to the z0 axis (see figure). Arms BC and CD have lengths b1 = 3.6 ft and b2 = 2.2 ft, respectively. The outside and inside diameters of the bracket are d2 = 7.5 in and d1 = 6.8 in. A vertical load P = 1400 lb acts at point D. Determine the: A) The maximum tensile, compressive and shear stresses of the bar CD
B) The maximum stresses of tension, compression and shear of the bar BC.
C) Draw Mohr's circle for the critical stress element from part A)

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal.find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

If the speed of a particle triples ,by what factor does its kinetic energy increase?

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.