Shell-and-tube condenser has a u value of 800 w/m2k based on the water-side are and a water pressure drop of 50 kpa. under this operating condition, 40 percent of the heat-transfer resistance is on water side. if the water flowrate is doubled, what will the new u value and the new pressure drop be? assume water is flowing inside the tubes and conduction resistance is negligibly small

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.