Starting from rest, an ice skater of mass 54.0 kg pushes away from the boards with a force of 130.0 N [W] and moves 0.704 m. He then moves at a constant velocity for 4.00 s before he digs in his skates and causes a net force of 38.0 N [W] to slow him down until he stops. How far, in total, did he move?

Several processes form metal ore. match each process to its description. volcanic activity weathering hydrothermal energy rocks break down as they interact with air and water. arrowright density differences and other factors cause metals to concentrate in igneous rocks. arrowright seawater heats up from contact with hot rock, and metals dissolve in it. the water rises and contacts cooler water, causing metal ores to settle on the ocean floor. arrowright

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

What happens to the light rays when they hit the specimen?