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Energy
- 1. Energy - The Fuel of Life
- 7. KE = 40,000 J 200 kg car travels 20 m/s KE = 80,000 J 400 kg car travels 20 m/s Kinetic Energy = ½ m v 2
- 16. Per Capita Oil Consumption
Hinweis der Redaktion
- Usually, some energy is "lost" or transferred into friction (heat and movement loss), so efficiency is never 100%. Still the overall amount of energy remains the same.
- round gravity to 10 in most cases
- round gravity (9.8m/s 2 ) to 10 in most cases
- If the law of conservation of energy is true, where does the energy come from at the start of the uphill climb? (chemical/mechanical energy of the bicyclist) Where does the energy go at the end of the roller coaster? (heat of friction)
- Discuss advantages/disadvantages of each
- Discuss advantages/disadvantages of each
- per capita = per person According to the CIA World Factbook estimate for 2010 the world consumes about 87 million barrels of oil each day.