A 6.0 kg block with a speed of 4.5 m/s collides with a 12.0 kg block that has a speed of 3.0 m/s in the same direction. After the collision, the 12.0 kg block is observed to be traveling in the original direction with a speed of 3.8 m/s. (a) What is the velocity of the 6.0 kg block immediately after the collision

On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)

The molecular mass of a gas is (select all that apply) a. independent of the type of gas b. the same number as the atomic (or molecular) mass, but measured in grams c. dependent on the temperature d. the mass of a mole of the gas

What are two examples of phase changes that skip a phase during transition?