How has Mr. Gonzalez significantly increased the cognitive level at which his students are working

The mentor is usually a peer of the individual that acts as a role model and the individual get started in adult life.

Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.