personal needs that I may have‚ however‚ I must invest the remaining $75‚000 on different investments so that later on in life‚ I will be able to live comfortably and enjoy myself by making good investment choices. There are several different ways that I can diversify the $75‚000 on various investments but I have found three particular investment areas that I feel confident with. The three areas of investment that I have chosen to invest the $75‚000 in are real estate‚ precious metals‚ and buying stocks
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Earth’s Magnetic Field Introduction Earth’s magnetic field is one of the world’s most complicated features. It started to be observed in 1845 by a scientist named Carl Friedman Gauss (Sarfati). The magnetic field is generated inside of the earth’s core and there are many scientists who still debate over how it was first created. There are also many arguments about the many changes that the field has gone through in it’s existence. These arguments are mostly either for a young-earth model or
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law and Biot-Savart’s law . 3) Solving boundary value problems for magnetic fields. Attempt the following problems 1) Derive the expression of magnetic field intensity at a given point due to infinite sheet of current using Ampere’s circuit law. − → − → → 2) Plane y=1 carries current K = 50− a z mA/m. Find H at (0‚ 0‚ 0) and (1‚ 5‚ −3). − → −2ρ2 − 3) Given the magnetic vector potential A = 3 → a z Wb/m‚ calculate the total magnetic flux crossing the surface ϕ = π2 1 ≤ ρ ≤ 2 m‚ 0 ≤ z ≤ 5 m. − → 4)
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MAGNETIC RESONANCE IMAGING Magnetic resonance imaging (MRI) has developed into one of the most versatile techniques in clinical imaging and biomedical research by providing non-invasively high resolution‚ three-dimensional anatomical and contrast-enhanced images of living tissue. The two most common groups of contrast-enhancing agents are gadolinium-based complexes and magnetic nanoparticles. Both types of contrast agents shorten locally the relaxation time of bulk water protons via rapid exchange
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How do you know? The atoms in ferromagnetic materials like to align their magnetic dipoles with the external field. 3. Test copper‚ wood‚ glass‚ and iron. Which ones are ferromagnetic? Only the iron is ferromagnetic |Activity A: |Get the Gizmo ready: |[pic] | | |Check that the Magnetic forces tab is selected. |
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INTRODUCTION: Magnetic Resonance Imaging(MRI) is a non invasive medical imaging method widely used in hospitals and in research. In year 1946 Felix Bloch of Standard /university and Edward Purcell of Harvard University made the first succesful nuclear magnetic resonance experiment to study chemical compounds‚ they were awarded the Nobel Prize for physics in 1952. In early 1980 ’s the first human magnetic resonance imaging( MRI) scanners became available‚ producing images of the inside of the
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Chapter 4‚ page 1 4 Nuclear Magnetic Resonance Pieter Zeeman observed in 1896 the splitting of optical spectral lines in the field of an electromagnet. Since then‚ the splitting of energy levels proportional to an external magnetic field has been called the "Zeeman effect". The "Zeeman resonance effect" causes magnetic resonances which are classified under radio frequency spectroscopy (rf spectroscopy). In these resonances‚ the transitions between two branches of a single energy level
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Critique of a toy Introduction It is extremely important to make sure that the toys your children play with follow the recommended safety standards and guidelines. Toys have been a part of almost everyone’s life‚ especially for kids. In the past‚ choosing the toys for kids was just a very easy task to do but at present‚ things are completely different. If you have seen on the televisions or read on newspapers‚ there are a lot of toys that have been recalled‚ confiscated and banned because they
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Magnetic resonance imaging (MRI) is a type of scanner that uses strong magnetic field and radio waves to produce complete images inside the body. An MRI scanner is a large tube that contains strong magnets. The patient lie inside the tube during the scan. The MRI scanner is used to observe almost any part of the body including the brain and spinal cord‚ bones and joints‚ breasts‚ heart and blood vessels and internal organs such as the liver‚ womb or prostate gland. The results of an MRI scan can
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affected by the presence and motion of such particles. A changing magnetic field produces an electric field (this is the phenomenon of electromagnetic induction‚ the basis of operation for electrical generators‚ induction motors‚ and transformers). Similarly‚ a changing electric field generates a magnetic field. The magnetic field is produced by the motion of electric charges‚ i.e.‚ electric current. The magnetic field causes the magnetic force associated with magnets. The theoretical implications
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