JoEllen22 JoEllen22 27-11-2022 Chemistry contestada Question 4 of 25 Trevor used a ramp to get a box into a truck. His input work was 700 J and the output work was 400 J. What was the mechanical efficiency of using the ramp? A. 175% OB. 57.1% C. 100% D. 42.8% SUBMIT
