A ball of mass 6.00 kg moving with a velocity of 10.0 ms-1 collides with a 2.0 kg
ball moving in the opposite direction with a
velocity of 5.0 ms-1. After the collision the
two balls coalesce and move in the same
direction. Calculate the velocity of the
composite body.​

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.

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.