Discuss the nature of materials causing turbidity in (a) River water during flash flood ​​​​​

(b) Polluted river water ​​​​​

(c) Domestic wastewater

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false