An excavator bucket has a heaped capacity of 6.2 CY and a bucket fill factor of 0.85. What is the bucket capacity? a. 5.35 CY b. 6.1 CY c. 7.3 CY d. 5.27 CY

Estimate the hourly production in bank measures of a hydraulic shovel loading sand and gravel into trucks. The machine is equipped with a front dump bucket having a heaped bucket capacity of 5.2 Lm³. Average swing angle is 60 degrees. The bucket fill factor is 0.9, job efficiency is 1.0, and load factor is 0.85.

An engineer proposes as a solution to the problem of the dam, to reinforce it according to the figure shown, but now the critical height h of the water level must be determined, which would make the indicated concrete reinforcement on the verge of overturning due to the water pressure. The density of the concrete 2.40 Mg/m^3, H=18m and d= 6m. Hints: use typical values ​​of water, consider one meter width of the dam to then generalize and don't forget point A.

Please write legibly, complete solutions, avoid rounding off intermediate values, thanks.