What is a photon in what way is a photon like a particle in what way is it like a wave?

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 free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

The dot diagram represents the motion of the motorcycle as it moves from left to right