Match the scenario to the type of green initiative it represents. 1. A small city recycles wastewater to use for a sprinkler system in a public park.
conserve water
2. Builders test for radon gas in new home construction.
protect air quality
3. A construction crew removes asbestos shingles from an older home.
reduce toxins

conserve water
protect air quality
reduce toxins

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

Burgers vector is generally parallel to the dislocation line. a)-true b)-false