Which shuttle completed the final us space shuttle mission?

In a good thermo flask the main cause of heat loss is

Ways that industry and agriculture use physical properties to separate substances

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?