A front end loader moved a 100 kg pile of dirt from the ground to a ledge 1m above the ground. The machine used 1306 J of energy to perform this task. How efficient is the front end loader?

What statements accurately describe atoms

If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10

The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.