Damping coefficient - Study guides, Class notes & Summaries

SPI Exam Pool Questions and answers. 100% Accurate, graded A+. What is described as the ability of an object to resist compression and relates to the hardness of a medium? - stiffness An increase in PRF would lead to - an increase in DF what has the higher propagation speed? air, bone, soft tissue or water - bone what has a lower propagation speed? water, soft tissue, bone or lung tissue - lung tissue as imaging depth increases, the PRF must - decrease what law describes the...

Current - ANSWER-Rate of flow of charge Coulomb - ANSWER-The amount of charge passing a point when a current of 1A flows for 1s Potential difference - ANSWER-The work done per unit charge in moving a small point positive charge between two points Threshold Voltage for a Diode - ANSWER-The voltage at which a current will begin to flow at, assumed to be +0.6V if not stated Reverse Bias - ANSWER-When very little currency can flow in the reverse direction of a diode Variable Resistor - ANSW...

ARDMS SPI EXAM STUDY GUIDE 180 Questions with Verified Answers In soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... - CORRECT ANSWER Remain the Same because stiffness and density affect Propagation Speed. What is the audible range? - CORRECT ANSWER 20-20,000Hz >20,000Hz=Ultrasound Frequency is measured in - CORRECT ANSWER Hertz (Hz) is Cycles per Second Not affected by sonographer Increase Frequency; Decrease Depth A period is t...

Which of the following is defined as only the active time? - Answer- Pulse duration The inertia of the medium describes its: - Answer- Density Which of the following is determined by the sound source only? - Answer- Frequency The prefix "centi" denotes: - Answer- Hundredths If the angle of incidence is 40°, what is the angle of transmission at the interface if medium 1 has a propagation speed of 1320 m/s and medium 2 has a propagation speed of 1700 m/s? - Answer- >40° The c...

ASE 367K Final Exam 30 Questions with Verified Answers Shifting CG forward will decrease the magnitude of required control forces. - CORRECT ANSWER False - Larger moment arm form center of pressure Newtons laws of motion are only valid where expressed in an internal frame. - CORRECT ANSWER True- only way to account for all accelerations The aerodynamic center is the point on the mean aerodynamic chord about which the longitudinal aerodynamic axis is zero. - CORRECT ANSWER False For a...

Current - ANSWERSRate of flow of charge Coulomb - ANSWERSThe amount of charge passing a point when a current of 1A flows for 1s Potential difference - ANSWERSThe work done per unit charge in moving a small point positive charge between two points Threshold Voltage for a Diode - ANSWERSThe voltage at which a current will begin to flow at, assumed to be +0.6V if not stated Reverse Bias - ANSWERSWhen very little currency can flow in the reverse direction of a diode Variable Resistor ...

Current - ANSWERSRate of flow of charge Coulomb - ANSWERSThe amount of charge passing a point when a current of 1A flows for 1s Potential difference - ANSWERSThe work done per unit charge in moving a small point positive charge between two points Threshold Voltage for a Diode - ANSWERSThe voltage at which a current will begin to flow at, assumed to be +0.6V if not stated Reverse Bias - ANSWERSWhen very little currency can flow in the reverse direction of a diode Variable Resistor ...

Medical Physics ALL MCQs; 1st year QUESTION AND CORRECT ANSWER 1. Sound amplification in the outer ear (auditory canal)is affected by: a. Sound speed b. Sound pressure c. Sound amplitude - CORRECT ANSWER-b. Sound pressure 2. Prolonged exposure to loud noise can cause permanent damage to: a. The air conductivity (of the ear) b. The structure of the eardrum (tympanic membrane) c. Inner ear - CORRECT ANSWER-c. Inner ear 3. The loss of elasticity (stiffening) of the tympanic membrane will ...

Absolute Accuracy - ANSWER-The ability to determine present position in space independently, and is most often used by pilots. Absolute Altitude - ANSWER-The actual distance between an aircraft and the terrain over which it is flying. Absolute Pressure - ANSWER-Pressure measured from the reference of zero pressure, or a vacuum. Acceleration error - ANSWER-A magnetic compass error apparent when the aircraft accelerates while flying on an easterly or westerly heading, causing the compass ...

Exam (elaborations) TEST BANK FOR Advanced Engineering Mathematics [Volume 1] By Herbert Kreyszig and Erwin Kreyszig (Student Solutions Manual and Study Guide) P A R T A Ordinary Differential Equations (ODEs) Chap. 1 First-Order ODEs Sec. 1.1 Basic Concepts. Modeling To get a good start into this chapter and this section, quickly review your basic calculus. Take a look at the front matter of the textbook and see a review of the main differentiation and integration formulas. Also, Appen...