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Energy is an essential part of our daily lives, but the resources that power the Earth are being threatened. In this lesson, students learn about renewable and non-renewable resources, including those that need protection.
Wind energy development in the Caribbean Raymond M. Wright Petroleum Corporation of Jamaica, 36 Trafalgar Road, Box 579, Kingston 10, Jamaica Available online 20 June 2001 in ScienceDirect. Abstract The Caribbean has the potential for a significant increase in wind powered electricity production. A bicycle is rolling down the hill, transferring potential energy into kinetic (movement) energy. The bicycle got its potential energy (energy due to position related to gravity) by the rider using metabolic energy to move the pedals. The pedals used mechanical energy to move the chain, which moved the wheels. The rider's metabolic energy came ...
Uranium-238, the most prevalent isotope in uranium ore, has a half-life of about 4.5 billion years; that is, half the atoms in any sample will decay in that amount of time. Uranium-238 decays by alpha emission into thorium-234, which itself decays by beta emission to protactinium-234, which decays by beta emission to uranium-234, and so on.