1. if the coefficient of friction between two surfaces is 0.4, what frictional force would be applied to a 20kg object?

Aray diagram for a refracted light day is shown. what does the dashed line represent

At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form