2. Write down a reason for the runway be smooth and the wheels frictionless? 3. What are possible errors that can occur in this experiment?​

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s

What is the most useful equation for electric power?