. One may model the ladder rung as a simply supported beam. Assume that the 750 N load exerted by the foot of the person stepping on the rung is distributed uniformly over the sole of the shoe. Draw the shear force and bending moment diagrams for the rung.

answer: not sure

explanation:

The angular surfaces of crushed stone make it perfect for forming flat surfaces when compacted or rolled. It makes a stable, interlocking base for concrete foundations, roads and floors.

Explanation:

A Carnot heat engine receives heat from a reservoir at 900$^\circ{}$C at a rate of 800 kJ/min and rejects the waste heat to the ambient air at 27$^\circ{}$C. The entire work output of the heat engine is used to drive a refrigerator that removes heat from the refrigerated space at -5$^\circ{}$C and transfers it to the same ambient air at 27$^\circ{}$C. Determine (a) the maximum rate of heat removal from the refrigerated space and (b) the total rate of heat rejection to the ambient air. Answers: (a) 4982 kJ/min, (b) 5782 kJ/min