A 1,200 kg car initially traveling at 20 meters/second increases its speed to 28 meters/second. How much work did the car's engine have to do to cause this change?
A. 38,400 Joules
B. 230,400 Joules
C. 240,000 Joules
D. 470,400 Joules

Ared apple is illuminated by a blue light the apple will appear

Which lists the organs in the correct order as food passes from the mouth to anus?

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?