1. On what basis would Aristotle have determined whether an action was moral?

A 4 m-wide tank with height of 1.8 m filled with water is pulled with a cable inclined at 30o to the horizontal. The constant acceleration value in the cable direction is 4 m/s². The water depth is measured as 1.5 m before the motion starts.  Determine the angle between the water surface and the horizontal.  Compute the maximum and minimum pressure values on the bottom of the tank.  How many volume of water are spilled?

Q 1: Design a concrete mix for the following performances and ingredients:

* Compressive strength at 28 days = 32 MPa, slump 80 mm

* Crushed coarse aggregate of max size 20 mm readily available

* Fine aggregate is river sand, fineness modulus = 2.5

* Cement Strength Class = 42.5

* Specific gravity of combined aggregate =2.6

* Water absorption of coarse aggregate = 0.8%

* Water absorption of fine aggregate = 0.5%

Q 2: Design a concrete mix for the following performances and ingredients:

* Characteristic compressive strength 50 N/mm2 at 7 days

* Defective rate 1 %

* Previous control data: standard deviation 5 N/mm2

* Cement: class 52.5 * Slump required, 30-60 mm

* Maximum cement content 550 kg/m3

* Coarse aggregate: Crushed single sized 10 mm

* Fine aggregate: Uncrushed with 45% passing 600 μm sieve

* Relative density of aggregate: 2.7 (assumed)

* Volume of trial mix: 0.08 m3

. In your own words , explain the predominant aging mechanisms in the short-term and the long-term aging in bituminous materials.?

Select the Lightest weight W-section of A992 steel to serve as a column 30 feet long and to carry an axial live compressive load of 160 kips. The member is pinned at the top and bottom. The member's self weight is estimated at 2000 lbs. It is supported at mid-height in its weak direction,

A concrete masonry unit has actual gross dimensions of 7-5/8” x 7-5/8” x 7-5/8”. The unit is tested in a compression machine with the following results:

            Failure load = 98,000 lb

            Net volume = 348.1 in³

1. Is the unit categorized as solid or hollow?
2. Calculate the gross area compressive strength.
3. Calculate the net area compressive strength.

please answer by typing, i will rate your answer.

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Describe the similarities and differences between flexural-torsional buckling and

lateral-torsional buckling. What is the coupling mechanism for each of these buckling modes?

What is the manufacturing process of CMUs?

Identify the sustainable development principles applicable to sustainable construction. Explain how construction industry is impacting the environment?

A 100-mL water sample is collected from the activated sludge process of municipal wastewater treatment. The sample is placed in a drying dish (weight = 0.5000 g before the sample is added), and then placed in an oven at 104°C until all the moisture is evaporated. The weight of the dried dish is recorded as 0.5625 g. A similar 100-mL sample is filtered and the 100-mL liquid sample that passes through the filter is collected and placed in another drying dish (weight of dish before sample is added is also 0.5000 g). This sample is dried at 104°C and the dried dish’s weight is recorded as 0.5325 g. Determine the concentration (in mg/L) of:

(a) total solids,

(b) total dissolved solids,

(c) total suspended solids, and

(d) volatile suspended solids, (Assume that VSS = 0.7 x TSS.)

A power plant release a grey smog plume that contains high concentration of sulphur dioxide into the atmosphere around 8am in the morning.

The plume spread out horizontally but do not mix vertically.

From the observation, the plume does not reach the ground level and extend downwind from the source for long-distance.

(a)   Using an illustration, identify the type of plume produced

(b)   Explain the factor that contributes to the formation of this plume?

A cantilever beam AB is 4 m long and is fully restrained at the left support A. The beam is loaded with a uniform load of 600 N/m over a length of 2 m from the free end together with a clockwise couple of magnitude 4800 N-m at the tip B. Determine the maximum moment.

Illustrate your opinion related to the number of subcontracts that are required to construct residential buildings as opposed to the number of subcontracts that are required for heavy construction projects