Adog walks 24 steps north and then walks 55 steps west to bury a bone. if the dog walks back to the starting
point in a straight line, how many steps will the dog take and in which direction will the dog walk? use the
graphical method to find the magnitude of the net displacement.

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by