A 350 kN block is resting on a rough horizontal surface for which the coefficient of friction is 0.45. Determine the force P required to cause motion to impend if applied to the block. A. Horizontally B. Downward at 30' with the horizontal.

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Beams

In structural engineering, a beam is a component made of a variety of materials (including steel alloys, and wood) that can resist loads applied laterally to the beam axis. Members, elements, rafters, shafts, and purlins are all terms used to describe beams.