# Science Homework Help

eNotes Homework Help is a way for educators to help students understand their school work. Our experts are here to answer your toughest academic questions! Once it’s posted to our site, your question could help thousands of other students.

• Science
The integral form for electricity is below, but Gauss also has a Law for Magnetism. Which one are you wanting? Integral of E * dA =Q/Epsilon naught ~~~Epsilon subscript 0 ~~the left side is the...

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Research may be very broadly defined as systematic gathering of data and information and its analysis for advancement of knowledge in any subject. research attempts to find answer intellectual and...

Asked by yogesh779 on via web

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Literature review is a very useful source of information for formulating a research task. Literature review consists of study and critical evaluation of previous research and experiments done in...

Asked by anil007 on via web

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Literature review refers to study, evaluation and documentation of publishd and unpublished works details of wich are available from secondary sources of data in the area of interest to the...

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Homogeneity of dimensional equation is normally used to 1)Check the whether the equation is correct, dimensionally. If the equation is not homogeneous with respect dimension then the equation is...

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The principle of homogeneity is that the dimensions of each the terms of a dimensiional equation on both sides are the same . Any equation or formula involving dimensions (like mass, length, time...

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Extrapolation is the process of obtaining values from a graph or a table that are extend beyond the given data. The trend of the data is extended beyond the last point given, and based on this...

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Experimental data purification refers to removing from a set of data obtained from experiments the entries which may be incorrect or likely to be unsuitable for inclusion in further analysis...

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Hand reach Materials should be placed in close proximity so that extension of the hand is not necessary the weight of the material should be light enough o that it will not strain the hand muscles...

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Stephen Hawkins is one of the most brilliant and famous scientists of this era. He is classified as a physicist. Hawkins was raised by a mother who was a Communist. He was an atheist since early...

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• Science
In the food chain there must be a balance. If there is something out of balance there can be harmful effects for all creatures and organisms within the chain. The first thing to look at is that...

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If your food chains do not have to be very long, we can make five different chains out of these. Now, you should be able to think of this by yourself. All you have to think about is this: which...

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Of course if deer eat too many of the saplings, the population of saplings will go down. If that happens, the deer will starve and their population will go down. Then the saplings can come back...

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Liquid, obviously the soda is liquid. Gas, the carbonation that causes the bubbles and the fizzing sound. Solid, the straw. It also changes from a solution to a heterogeneous mixture. The bubbles...

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Many different types of vascular access devices exist. It is up to the health care professional to choose the most appropriate device to use given the clinical situation. When deciding which device...

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Anthropometric dimensions refer to the statistical data on dimensions of various parts of the body of operators and the degree of their mobility. Anthropometric data on dimensions that impact the...

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Anaphylaxis is a life threatening allergic reaction to something. It can be so severe that a person stops being able to have air travel through the airway or the person's heart stop operating....

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I'm not sure what you mean by "summarize", but all the things you list can be used to either rule in or rule out suspects after a crime has been committed. Hair and blood can be used for DNA...

Asked by sarahh10 on via web

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There have been so many great scientists and doctors that it would be very hard to single one out. There also many different fields of medicine and science in which discoveries have been made. Then...

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Another strange "armor" was that of the Aztecs. They had a quilted and knotted type of cotton armor, which was effective against the darts and other wooden weaponry against which they had to...

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Nutritional yeast is said to be a very healthy dietary supplement for vegetarians. It is naturally high in B-complex vitamins and folic acid, which is often missing from a vegetarian diet. It...

Asked by fromici on via web

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This is pretty hard to explain. So I think what I will do is post a link for you to look at so you can read it in more words than I could type in this box. So copy and paste this link in your...

Asked by jamielegood on via web

• Science
More than one person contributed to the theory. Chapman and Enskog literally wrote the book on the kinetic theory of matter. Einstein also contributed to it, confirming the existence of atoms and...

Asked by jane1992 on via web

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Wow... how many have there been? I guess I would mention The discovery of a vaccine for polio. The discovery of transistors, which were able to replace vacuum tubes and allow computers to get...

Asked by greta92 on via web

• Science
These are the basic steps in identifying or excluding suspects in a crime. Each step has to be done carefully, as mistakes can be made in each--and we are talking about someone being found guilty...

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He was born in what is now Croatia. However, his parents were Serbs so his native language was Serbian. At the time that he was born (1856) the area where he was born was part of the empire of...

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The main advantage is that it was very fast. However, the disadvantages were that it was very expensive and not very efficient in terms of fuel (which is why it was expensive). Not very many...

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Forest therapy can also be used to release stress, one study shows that after 20 minutes in a forest setting individuals had as much as 13% less of the stress hormone salivary cortisol in their...

Asked by luna9219 on via web

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Two things you can change in your diet to boost your immune system is to add antioxidants and nutrients. Antioxidants are the vitamins and minerals found naturally in foods or available as...

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I'm not sure what you are asking us to discuss. To me, it's an exciting idea, but I hope it really becomes a serious thing. It seems to me that it might just be a gimmick -- that it will only be...

Asked by ingw33 on via web

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Orchids were brought from the West Indies and China were brought to Great Britain in the 1700's. Orchids have been considered useful in medecine, however the only orchid of true economic value is...

Asked by creativluana on via web

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Some other Chinese inventions are fireworks, a method for deep drilling for gas which resembles todays oil rigs, row crops, and the parachute. All of these inventions have helped to modernize the...

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A weed is a plant that is generally unwanted for the following reasons: Some are unsightly. Some choke or crowd out desirable plants. Some give unwanted shade to desirable plants. Some take needed...

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Compressed tablets are made through a process of mixing pulverized powdered ingredients, die pressing and packaging. The ingredients start out as powders that are further pulverized to dust and...

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Technological advancement has facilitated and enhanced the study of the brain. The imaging techniques and electrophysiological recordings have increased our knowledge about the workings of the...

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First, I am going to answer this by assuming that the pig organ will work as well as a human organ. I will assume that there would be no greater risk of rejection than there would be with a human...

Asked by dogcrazy on via web

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The main issue I can see would be functionality. An organ is not tissue that can function in every living species, so we have to assume, until proven otherwise, that cross-species transplants are...

Asked by animallover on via web

• Science
I love that story! OK- A growth medium is defined as a set of circumstances and conditions that enable or disable the proper development of an organism. Hence, in the A.S. the growth medium refers...

Asked by tigerrule on via web

• Science
The short answer to your question is that each bacterium must weigh 5.96 x 10^-5 grams. The way to get this is by using a formula for exponential growth. The formula is y = a(1+r)^x In this...

Asked by catlover on via web

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That's a good question. To start with, I'd say it's more than simply "said" that energy can't be destroyed. That statement is part of the First Law of Thermodynamics. The full statement of that law...

Asked by kaspercool on via web

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Basic reason behind Electrophoresis is the movement of DNA on size basis as DNA has negative charge it moves towards anode in a electrophoretic system. Smaller size band fragments move fast in the...

Asked by natalyap12 on via web

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The Northern Riffleshell (Epioblasma torulosa rangiana) is an endangered species of fresh water mussel. Their habitat is swiftly flowing, well-oxygenated water. They are filter feeders consuming...

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In PCR, a reaction takes place in an eppendorf tube, where the primer strand is added from outside in the form of a deoxyoligonucleotide, and DNA polymerase enzyme is added to help in...

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The Northern Rifleshell is not migratory. It survives by burying itself in firmly packed sand and or gravel. The problem that has occurred because of river and agricultural runoff has been a...

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The basic steps are to collect cells, place them in a solution to burst (lyse) them and release the DNA, separate the DNA from other cell components, and isolate the concentrated DNA. After that,...

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Ureotelic animals have the ability to produce urea has a nitrogen based compound. The livers of ureotelic animals have the ability to hydrolyse l-arginine and other guanidino compounds. The...

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Dimensional analysis is a method employed by scientists to analyse and understand relationships between different properties and quantities of physical things and phenomenons by analysing the...

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When you are doing experiments in science, no matter what type, there are things that you manipulate, and results that occur as a result. The things you are in charge of are independent variables...

Asked by ramesh78 on via web

• Science
The answer may depend on the field, but generally I think it's safe to say that a technical paper has several standard sectoins: An introduction presents an overview of the problem being discussed...

Asked by vishalromiyo on via web