2. A 6.0 kg body moving at a speed of 4.0 m/s collides with a body twice its weight and moving at half its speed along the same direction. After the collision, the 6.0 kg body moves in the opposite direction with a speed of 2.0 m/s. Find
the final velocity of the heavier body [A] 3.0 m/s [B] 36.0 m/s [C] 5.0 m/s [D] 12.0 m/s​

Identify two factors that determine the rate of stream erosion

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.

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.