BISC 3 Lecture 14: Chapter 13.1 Energy
Document Summary
How do we measure energy use: energy- e=mc, force = mlt. T: watt = ml, kw/h- (kilowatt hour)= one thousand watts for one hour, 100 watt light bulb on for ten hours= 1 kw/h work/power of the electric charge, 1000 watt stove on for one hour= 1 kw/h. How muchenergy do we use: the largest share of the energy used in the u. s. is consumed by industry, residential and commercial customers use roughly 41%, transportation consumes the remaining 28% Fossil fuels: fossil fuels are organic (carbon-based) compounds derived from decomposed plants, algae, and other organisms buried in rock layers for hundreds of millions of years. Ravaged and plundered and ripped her and bit her. Stuck her with knives in the side of the dawn. And tied her with fences and dragged her down . Coal is a finite resource: pennsylvania has a rich coal mining history, but most coal towns are now depressed and facing challenges.
