PLZ answer ASAP on Physics

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

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

How does an observation about an object differ from an inference about that object