What is the kinetic energy of a 620.0 kg roller coaster moving with a velocity of 9.00 m/s? a.2,790 j b.5,580 j c.25,100 j d.50,200 j

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.

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending

If you place a magnet under a clear dish, and sprinkle iron fillings over it, above what part of the magnet will most of the fillings gather