13. An airplane drops a care package into a jungle. The package is dropped from an altitude of 3,600 meters and has a mass of 2.5 kilograms. After the package has
fallen 1,000 meters, what is its kinetic energy?

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Consider two metallic rods mounted on insulated supports. one is neutral, the other positively charged. you bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand. show answer correct answer what would be resulting charge (if any) on the initially neutral rod

For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap