Two balls collide head-on on a table. The first ball has a mass of 1.0 kg and an initial velocity of 12.0 m/s. The second ball has a mass of 2.0 kg and an initial velocity of -16.0 m/s. After the collision, the first ball travels at a velocity of m/s. What is the velocity of the second ball after the collision? Assume a perfectly elastic collision and no friction between the balls and the table.

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.

The ability to make things happen is also called a. heat b. force c. matter d. energy