Calculate What is the change in speed of the P wave as it goes from the mesosphere to the outer
core? From the outer core to the inner core?
lithc
asthenosphere

Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?