A 51 g ball rolls around a 48-cm-diameter L-shaped track at 53 rpm. What is the magnitude of the net force that the trach exerts on the ball

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

What’s #16 asking me and how do i solve it?

What happens when a rubber rod is rubbed with a piece of fur?