A 100 kg skier, including equipment, stands at the top of a black diamond ski run. The gravitational potential energy of the skier relative to the bottom of the ski run is 200 kJ. What is the vertical distance to the bottom of the run? Been trying to figure this out for hours. I still don't understand please help

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth

Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?

Avehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road