Greg, Matt, and Stephen work together to hold the door shut to keep out the zombies. Greg pushes with a force of 15 N, Matt with 12 N, and Stephen with 22 N. What is their net force on the door?

Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

From the perspective of an employee that effective channeling of work related information and concerns