A 1200 kg car moving south at 19.0 m/s collides with a 2100 kg car moving north. The cars stick together and move as a unit after the collision at a velocity of 5.28 m/s to the north. What is the velocity of the 2100 kg car before the collision? ___m/s to the north

The four giant gas points that are made primarily of lightweight elements are

Select the correct answer from each drop-down menu. compared to its surroundings, the concentration of solutes is low inside a cell. so, the cell is with respect to its surroundings. a particular solute in this cell uses energy for its transport from the cell to its surroundings. this type of transport is called

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j