Which equation is most likely used to determine the acceleration from a velocity vs. time graph?

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.