A charge of 4.15 mC is placed at each corner of a square 0.450 m on a side. Determine the magnitude of the force on each charge.

Which notation is used to represent an alpha particle? a. b. c. d.

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.

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?