Find the work done by the vector field ⟨5x+yx, x2+4⟩ on a particle moving along the boundary of the rectangle 0≤x≤2,0≤y≤3 in the counterclockwise direction. (the force is measured in newtons, length in meters, work in joules=(newton-

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.