The table shows the potential energy and kinetic energy of a skier at two different positions on a hill. position and energy position (above ground) kinetic energy potential energy 100 meters 0 units 50,000 units 60 meters ? 30,000 units what is the kinetic energy of the skier at a height of 60 meters above ground? 20,000 units, because total energy remains unchanged 80,000 units, because total energy remains unchanged 20,000 units, because total energy of the skier decreases 80,000 units, because total energy of the skier decreases

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In each transformation of energy , some energy what?

Me brainliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula.5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects.8. describe the planets’ orbits around the sun.9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets.13. what causes the seasons?