For mach index of 0.6 what is the intake valve flow area g

What happens in a global convection cell

What property of an object determines its inertia?

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?