1.Earthquakes 1. According to dictionary.reference.com an earthquake is a: Series of vibrations induced in the earth’s crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating. The earth is made up of tectonic plates these are massive slabs of rock floating on magma ‚as the plates move about‚ they spread apart‚ collide‚ or slide past each other‚ This is the main cause of volcanoes and earthquakes Earthquakes occur in many regions all over the world
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Journal of Economic Literature 2011‚ 49:2‚ 326–365 http:www.aeaweb.org/articles.php?doi=10.1257/jel.49.2.326 What Determines Productivity? C S * Economists have shown that large and persistent differences in productivity levels across businesses are ubiquitous. This nding has shaped research agendas in a number of elds‚ including (but not limited to) macroeconomics‚ industrial organization‚ labor‚ and trade. This paper surveys and evaluates recent empirical work addressing the question of
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Laboratory Experiment No. 1: Common Laboratory Procedures Objective In this experiment‚ the objectives were to use a balance and measure the volume of the liquids. Theory In the experiment‚ three calculations were used. These are the density‚ relative error and the standard deviation. Density is refers to the mass (m) per unit volume (V) of a material and is often represented by the symbols d or ρ‚ where d = m/V. The density of an object changes with pressure and temperature. Second‚
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In both Macbeth and “The Laboratory” we have a very ambitious woman who is willing to resort to murder to accomplish her ends. Both women are not afriad to kill‚ both use a lot of descriptive language‚ and both are planners. The main similarity between the two of them is that both are open to murder and neither has any moral problems with it. In “The Laboratory” the narrator describes how she is going to kill her lover’s mistress. NOW that I‚ tying thy glass mask tightly‚ May gaze thro’
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others‚ but no matter the severity‚ there is usually a loss‚ and a cry for help. The first one I want to talk about is the earthquake that hit Haiti in 2010. By January 24th‚ at least 52 aftershocks (a smaller earthquake following the main shock of a large earthquake)‚ measuring 4.5 or greater had been recorded. An estimate of three million people were affected by the earthquake. Death toll estimates ranged from 100‚000 to 160‚000. 316 total had been affected overall. Estimated 250‚000 residences and
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deadliest earthquake in history killed 840‚000 people‚ But many other earthquake have caused the dead of more than 100‚000 people and isn’t unusual‚ even in modern times‚ for an earthquake death toll to reach 20‚000 to 20‚000 people with hundreds of thousands left homeless. There are four factors that affect the casualty rate and economic impact of earthquake: magnitude‚ location‚ quality of construction of building‚ and timing. Magnitude The magnitude‚ or strength‚ of an earthquake is measured
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Cause and effect of earthquakes The ground trembles‚ shakes and growls. Pictures that were once hanging so beautifully on the wall smash to the ground exploding into glittery slivers of broken glass‚ roadways break apart‚ engulfing whatever was in its path‚ never to be seen again. For many‚ this would seem to be the makings of a fictional horror movie created by Hollywood with intent to frighten a person and to play with ones senses. For those who live in the areas depicted by film‚ this is
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Title: Laboratory Techniques & Measurements Purpose: To become familiar with the International System of Units and common laboratory equipment and techniques. To learn how to determine volume‚ mass‚ length‚ and temperature of a wide variety of items. To learn how to calculate density and concentration of dilutions. Procedure: I used a ruler‚ thermometer‚ and scale to take measurements. I used a graduated cylinder‚ short step pipet‚ scale‚ and ruler to determine volume and density. I used a
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helmet (or goggles) and mask‚ rock powder container‚ plastic bag‚ spoon‚ gloves‚ labelling sticker and pen‚ cleaned Jaw crusher and TEMA Mill (i.e. laboratory disc mill). Material: Sample rock of Granite and Sandstone (hand specimen)‚ Acetone. Procedure: 1. A piece of rock is selected (based on required size)‚ cleaned and dried. 2. Using a sledgehammer‚ the selected rock sample is knocked into an approximately 5 to 10 cm in size (pebble-sized). For a hard rock (i.e. granite)‚ a bigger
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This region in China has a long history as a thriving city prior to the Tangshan Earthquake in 1976. Humans lived and worked in Tangshan as early as 40‚000 years ago. It was a village during the Tang dynasty. After this dynasty‚ it was part of the Ming dynasty. During the Ming dynasty‚ Tangshan developed in agriculture‚ oil exportation‚ and ceramics. In 1889‚ this region was named Tangshan Town and later‚ it became known as the City of Tangshan. It is home to many "first" innovations in China’s
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