Peabody Energy

Introduction The overview, in this case, extends out of the 1938 amendment regarding tribe royalties. A coal lease involving the Peabody Coal Company and the Navajo Nation (United States v. Navajo Nation). Navajo Nation is a federally recognized Indian tribe within the United States. Better known as the Indian Mineral Leasing Act of 1938 (IMLA) (United States v. Navajo Nation). The Secretary of the Interior approved an amendment to the lease which allows Indian tribes to lease mining rights on their tribal land to private companies. The Navajo tribe in 1964 signed a lease consenting Peabody to mine on the tribe 's land. The contract with the predecessor of Peabody Coal Company stated for every ton of coal mined from the land the Navajo tribe would receive in return royalties of 37.5 cents (United States v. Navajo Nation). After 20 years, the agreement had the possibility of renegotiation. By 1977 the required minimum was set at 12.5% by Congress after the Navajo tribe requested new rates to be established by the Secretary and the Director of Bureau of Indian Affairs (Perdue, 2009). The Peabody Coal Company agreed to this reduced percentage moving forward. In…

heat given out when dissolved in water Aim To investigate how the changing mass of a solute will affect the energy given out. Introduction Dissolving is when a solute is mixed into a solvent to form a solution. Dissolving can be either endothermic or exothermic. Endothermic reactions happen when the energy given out when bonds are broken, is greater than the energy given out when bonds are made. As more energy is used and taken in, the surroundings become colder. Dissolving is exothermic when…

8) Empty cups, cool temperature probes in cold water until it reaches room temperature. 9) Repeat steps 1-8 for second trial. Our thermos was constructed with materials that minimizes energy loss by conduction, convection and radiation to the greatest degree. We created the thermos with multiple layers, starting with the two polystyrene cups in the centre, which were wrapped in bubble wrap and taped. A polystyrene lid was also cut out and placed on top of the inner polystyrene cup. Each layer…

Introduction The purpose of this lab is to test for the most efficient way to transfer heat energy from the chip to the water beaker. The heat transfer was coming from burning a baked lay and through our calorimeter heat energy was pushed out. Our experiment was taken one step further to continue to modify and build a better calorimeter. Overall the purpose was to find the best way for energy to be captured. Literature Review Anything around us is generally matter. Everything we touch,…

In order to survive under several environmental influences, animals must possess biological mechanisms which enable them to regulate and maintain their internal environment. Temperature is one of abiotic factors that are inexorably linked to every animal’s physiological functions since it is considered a strong source of selective pressure on animals (Miller, 2010). Animals are categorized into thermoregulators and thermoconformers based on their mechanisms to maintain their internal…

I think trying to perfect the wave generator used within the CHAMP would be an ideal area of study for me that incorporates my electrical engineering education with my physics background. This would be a stepping-stone to future technologies. For example, a small hand held HPM weapon would allow soldiers to eliminate visible or nearby enemy electronics without need for aerial support. Code 35 also has a directed energy division that interests me, the Applied Electromagnetics…

organisms do not depend on external conditions but rather can produce and maintain the generated heat within their systems to maintain their bodies at a constant temperature. If temperatures increase or decrease above or below the desired constant temperature or thermo neutral zone, these organisms have to do work and spend energy in order to reach a constant metabolic rate. The metabolic activity seen among both endothermic and ectothermic organisms varied in the different environmental…

anaerobic capacity and muscular power. The dominant energy system that squash players use is the Lactic Acid System. The fitness component Agility is the ability of the body to remain balanced whilst changing direction. It is vital for squash players to be agile. Agility is used in squash when the player changes direction constantly to get close enough to the ball to be able to hit it. The opposition will always hit the ball where the other player is not,…

confidence in the workforce. Creating rules and standard operating guidelines for how to attack the challenge can be comforting because it gives people structure. Well timed humor can be a tension breaker and add some relief to the seriousness to the present issues. Occasionally, leaders might need to separate supporters of different viewpoints, especially if each side becomes confrontational. There is only so much work people can bear at one time so managing the amount of work or change is…

behind your observations. Planck had taken this second step, and was looking for a theoretical derivation of what became Planck’s Law. This gave him a more fundamental understanding of the process of radiation. It is ironic, then, that Planck needed to quantise light to get his derivation to work. He had used Boltzmann’s equation to better understand the process but this understanding was that light came in quanta. Planck very definitely did not believe that light actually came in quanta. He…