Spinning protons - Study guides, Class notes & Summaries

Magnetic Resonance Imaging (MRI) Questions and Answers 2023 What does MRI rely on? [3] electromagnetic fields, radio waves, and hydrogen levels in the body What % of the human body is hydrogen? 70% What distinguishes MRI from CAT scans/x-rays? no ionising radiation present What is magnetic force measured in? tesla At what strength is the MRI magnet maintained? constant tesla strength What is the magnetic strength of clinical scanners? approx. 1.57, 3T,...

A&P types of corrosion sec B Questions and Answers Latest updated 2024 Protons Neutrons Electrons The basic unit of a chemical element is the atom. It is made up of a nucleus which contains ________ and _______, and is surrounded by spinning _________ Positive No charge Negative What electrical charge is carried by each of these atomic particles? Protón __________ Neutron ______ electron ____ Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10...

ARMRIT Exam Questions with Verified Answers Rated A+ (2024/2025) Different tissues that have signals that appear similar on an MR image are described as: A) hypointense B) hyperintense C) isointense D) isodense - -isointense in a large main magnetic field such as those employed in MRI, the motion of a hydrogen proton has been described as wobbling like a spinning top. this motion is called A) precession B) resonance C) frequency D) angular momentum - -precession magnetic resonance i...

ASVAB - General Science Exam 60 Questions with Verified Answers * Which of these reduces friction? car brakes tire tread ball bearings sandpaper - CORRECT ANSWER ball bearings * If you place bean seeds between moist paper towels and watch the stem leaves appear, you will see a demonstration of transpiration germination fertilization pollination - CORRECT ANSWER germination * Any astronomical body that revolves around a larger body is called? a nova a comet a satellite an ast...

Science Olympiad Study Guide Verified And Updated Ionic Bond - answerA bond between a nonmetal and a metal. One loses or gains an electron. Sea Breeze - answerA wind blowing from cool ocean to warm land next to it. Endoplasmic Reticulum - answerA network of tubes that are responsible for carrying materials throughout the cell. There are often ribosomes scattered about it. Banolith - answerAn intrusive igneous rock at the surface of the earth that formed below the surface. Monera - answer...

Nuclear magnetic resonance. - Answer Magnetic Resonance Imaging is derived from the process known as: Magnetic field, proton, radio-wave - Answer On a very basic level, the three basic components required to attain MR signals are: Superior soft-tissue contrast resolution. - Answer In comparison to Computed Axial Tomography, an advantage of MRI is: Special and costly site planning and shielding. - Answer In comparison to Computed Axial Tomography, a disadvantage of MRI is: Iron, cobal...

The area in Asia that first discovered magnets is known as? - Answer Magnesia The first magnets were called magnetites because the people that lived in the area where they were found were known as? - Answer Magnetes For centuries, sailors use magnets for which of the following purposes? - Answer To navigate the seas Which of the following people named the ends of the magnet north and south poles? - Answer Petrus peregtinus de Maricourt In 1825, the British scientist, William Surgeon,...

ATOMS - ANSWER-FUNDAMENTAL SUBMICROSCOPIC UNIT OF ALL MASS. SIZE OF THE ATOM AND ITS WEIGHT HAVE INTERESTED SCIENTISTS FOR A LONG PERIOD. SUBSEQUENTLY, EXPERIMENTS WERE DEVISED TO DETERMINE THE SIZE AND WEIGHT OF THE VARIOUS ATOMS. THE LIGHTEST OF ALL ATOMS IS HYDROGEN. PROTON - ANSWER-A SUBATOMIC PARTICLE HAVING A POSITVIE CHARGE IDENTICAL IN MAGNITUDE TO THE NEGATIVE CHARGE OF AN ELECTRON AND, TOGETHER WITH THE NEUTRON, A COMPONENT OF ALL ATOMIC NUCLEI. THE PROTON FORMS, BY ITSLEF, THE NUCL...

asthenosphere plastic, subdivision of the mantle below the lithosphere. rock is easily deformed atmosphere gaseous shell, planet's envelope of air biosphere life on earth near surface catastrophism earth shaped by catastrophes: canyons, mountains, etc. convergent boundary plates come together core located beneath the mantle, it is the Earth's innermost layer. Inner and Outer crust the very thin, outermost layer of earth divergent boundary...

CH 26 – MRI questions with correct answers 2023TRUE or FALSE MRI is a noninvasive procedure. - correct answer TRUE TRUE or FALSE MRI uses ionizing radiation. - correct answer FALSE Which of the following the main element effected by MRI? a. oxygen b. nitrogen c. hydrogen d. carbon - correct answer c. hydrogen Atoms with ___________ are considered magnetic and therefore are effected by MRI. a. high atomic numbers b. low atomic numbers c. even atomic numbers d. odd ...