Given theta = 7pi/6, find (sec theta, cos theta)

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

The two required components for a generator are

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?