How do I write this inequity that describes the temperature range?
An oven's heating element turns on when the internal temperature falls to 15 degrees below the set temperature and turns off when the temperature reaches 5 degrees above the set temperature. You preheat the oven to 330 degrees before putting a cake in and baking it for an hour at 330. How do I write this inequity that describes the temperature range of the oven while the cake is baking?
How are entropy and temperature related?
Entropy of a closed system is related to the temperature by the following equation:[math]\Delta S = \frac {\Delta Q}{T} + \sigma[/math][T is actually the temperature at the boundary of the system where heat [math]\Delta Q[/math] is being added or removed]What does this mean? How to interpret this?This means that the entropy of the system can only be changed by:Heat addition or heat removal from the system given by the first term on RHSThrough irreversibilities such as friction, irreversible mixing etc. represented by the second term on RHS i.e. [math]\sigma[/math]So this means that if the system boundaries are adiabatic i.e. [math]\Delta Q[/math] is zero, then you can increase or decrease the temperature but the entropy will remain same provided the second term is zero [No friction].Also the same amount of heat addition will cause different amount of change in entropy depending on the temperature of the boundary through which heat is being added. Higher the temperature, more heat will be required to increase the entropy by same amount.In other words, if the entropy of the system (without any irreversibility) is increased by [math]\Delta S[/math], then there must be a heat addition to the system from outside equal to the amount [math]T. \Delta S[/math] and vice versa.
Does anyone know how can I find information about Mexico?
Click on the link below for any information that you need, also you can use the search window on that page to find more information. This way you don't have to look though all the information above to find what you want. http://www.oecd.org/statisticsdata/0,2643,en_33873108_33873610_1_1_1_1_1,00.html
If God created the world, why did he create the bad? If everything is in His hands alone, why did He not just make a good world?
God created the world perfect, there was no sickness, no disease. In fact there were no weeds, no fear of man in animals, neither did they hunt each other. Man did not have to work to feed himself, plants would just grow and provide what was needed. Everything grew only as much as needed as not more, everything was in perfect balance and peace and harmony. There was no death, no sadness, no sickness, no toil. There was only perfection, including perfect love, because God is love. God lovingly created a world perfectly suited to mankind, His greatest creation. Love never takes away another's freedom to choose, even the choice to choose against. So in the middle of the entire perfect world God planted one lone tree and that alone in the entire earth was forbidden. To choose to eat from that tree would be choosing against God. And what does mankind do with that choice? We choose against God.All the "bad" that exists in this world came not from God's choice, but from our choice to go our way, to do our own thing, to not love another, to put our self first. All the evil, all the suffering, all the sickness and death comes from our own choice to put our-self first above others and most importantly above God. Every " bad" that mankind does in this world is because that person (or group of people) puts what they want and desire or think they need above another's good. from the worst most atrocious crime to the "minor" every day faults.. all are based on "ME first", "MY way" "I want, think, desire, believe", We brought all this on ourselves, it the natural results ( consequences) of us choosing our way. We destroyed the perfection God created for us, and we keep destroying it...because we keep on choosing "self" over love for another.
What is meant by "the multidisciplinary nature of environmental studies"?
The multidisciplinary nature of Environmental Science is imbibed in its definition that it is the study of the interaction of physical,chemical and biological components of human surroundings. To put it straight any action taken by human and its effect on the surrounding and vice versa comes under the purview of Environmental Science. Lemme give an example, air pollution is a grave issue threatening the existence of life on Earth.In recent time , considering the extent of various environmental problem like Air Pollution, Water Pollution, it is clearly observed that all these problems are somehow integrally associated. For example as the air pollution is increasing, the global temperature increases which further causes the growth of blue green algae in ponds and rivers causing eutrophication. Also considering the variables that contribute to our immediate environment like humans, animals, insects, microbes, air, water, temperature, Sun, etc. etc. and their complex interactions. Many theories like Gaia hypothesis, has already proven that nothing on this planet earth is isolated. We all are somehow contribute to everything else in this biosphere. There are usually rippling effects that occur when there is a disturbance to an area’s natural environment. For example, what if there is a proposal to build a housing development in an area where there is a natural forest inhabited by many indigenous organisms.Pic Courtesy: Google.