Spinning protons - Study guides, Class notes & Summaries

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...

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 ...

different tissues that have signals that appear similar on a mr image are described as: - ANSWER-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: - ANSWER-Prescession Magnetic resonance imaging is derived from the process known as: - ANSWER-Nuclear magnetic resonance Once the net magnetization vector (nmv) has moved away from equilibrium, the following will ...

Define Enthalpy Correct Answer: total energy of a system Which of the following is true of the electric field intensity about an isolated point charge? A. It varies directly as the distance to the charge. B. It varies inversely as the distance to the charge. C. It varies directly as the square of the distance to the charge. D. It varies inversely as the square of the distance to the charge. Correct Answer: D. It varies inversely as the square of the distance to the charge. As a profession...

Observational recordings - Answer - should not be altered, erased, or whited-out to make corrections - drawing a single line through it Parts of a lab report - Answer 1. title 2. abstract - contain the hypothesis - include a control and one variable 3. introduction 4. methods 5. results 6. conclusion / summation Volumetric flask - Answer - used to accurately prepare a specific volume and concentration of solution Erlenmeyer flasks - Answer used for mixing, transporting, ...

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...

fMRI/EEG QUESTIONS AND ANSWERS 2023 How does fMRI work? When activity is taking place in a particular region of the brain, the neurones require oxygen. When an person lies inside an MRI machine, all of the protons in their body try to line up with the magnetic field. Protons in oxygenated blood are very organised in their spinning. However, deoxygenated haemoglobin molecules have magnetic field gradients that alter the spinning of nearby diffusion hydrogen nuclei. This less organised spinning ...

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...

absolute zero Lowest possible temperature, 0K, object has minimum internal energy. acceleration Change of velocity per unit time. 00:31 01:24 activity of radioactive isotope Number of nuclei of the isotope that disintegrate per second. Becquerel (Bq) Unit of radioactive activity, 1Bq = 1 disintegration per second. amplitude Maximum displacement from equilibrium of oscillating object. angular displacement Angle an object in circular motion turns ...

MRI QUESTIONS AND ANSWERS 100% CORRECT 2023 A T1 weighted image is produced using a ________ TR and a ________ TE and produces an image with ________ fat. a. long; long; bright b. short; short; dark c. long; long; dark d. long; short; bright e. short; short; bright e. short; short; bright When a 180-degree RF pulse is applied, the affected nuclei are directed to the minus Z-axis. a. true b. false a. true The attached image represents: brain matter light grey, surrounding ...