How many protons does this atom have? how many neutrons does this atom have? how many electrons does this atom have?

A60-kg skier starts at the top of a 10-meter high slope. at the bottom, she is traveling 10 m/s. what is the gpe? gpe =mgh 2,880 j 5,880 j 3,000 j 1633j

State the right hand rule of the direction of magnetic field in a conductor carrying current

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