What is a comet - Study guides, Class notes & Summaries

The direction of the Doppler shift determines: A. the peak velocity of the flow B. the color Doppler hue C. the average velocity of the flow D. the color Doppler luminance -answer- B. the color Doppler hue Color Hue - perceived color used to demonstrate direction (red and blue or positive and negative shift) What is the primary factor that determines the resistance characteristics of the arterial signal displayed by PW Doppler? A. vessel course and location B. branch number C. part it...

CAP Billy Mitchell Aerospace Review 2024 Questions and Answers 100% Pass A heading indicator is also known as a... - Answer- Directional Gyro Which of the following is NOT true regarding microbursts? - Answer- Microbursts usually occur gradually, thus allowing a pilot time to react Which of the following provides energy that caused our atmosphere to move both horizontally and vertically? - Answer- The Sun What rocket was used to launch the first manned Apollo mission, Apollo 7? - Answer- ...

Light year definition correct answers The distance light travels in one year Light year distance correct answers 9.5*10^12 km Astronomical Unit (AU) definition correct answers Average distance from the Earth to the Sun AU distance correct answers 1.5*10^8 km Galaxy correct answers A great cloud of stars, gas, and dust held together by the combined gravity of all its matter Planetary Systems correct answers A set of gravitationally bound non-stellar objects in orbit around a star o...

billy mitchell aerospace exam questions and answers 100% pass Location of space - Answer- Beyond the influence of earth Micro gravity - Answer- small or low gravity Cislunar space - Answer- the space between the earth and the moon interstellar space - Answer- the distance from one solar system to another interplanetary space - Answer- the space from the center of the sun to the orbit of Pluto galaxy - Answer- an enormous collection of starts arranged in a particular shape universe - Answ...

SPI Ultrasound Physics Review Exam - Questions and Answers Relates to likelihood of harmful bio effects from cavitation Mechanical index Predicts maximum temperature increase Thermal index Measures output intensity of the beam Hydrophone Region of increased brightness due to higher intensities in focal zone Focal banding Occurs when sound travels through a medium with a lower attenuation rate than the surrounding tissue Enhancement Beam travels through an area of high attenuation Shadowing Bea...

CAP Billy Mitchell Aerospace Review 2024 Questions and Answers 100% Pass A heading indicator is also known as a... - Answer- Directional Gyro Which of the following is NOT true regarding microbursts? - Answer- Microbursts usually occur gradually, thus allowing a pilot time to react Which of the following provides energy that caused our atmosphere to move both horizontally and vertically? - Answer- The Sun What rocket was used to launch the first manned Apollo mission, Apollo 7? - Answer- ...

ARDMS SPI Exam |Questions and Verified Answers| 100% Correct| Grade A (Latest 2023/ 2024 Update) Q: what does coded excitation improve in addition to penetration? A. lateral resolution B. signal-to-noise ratio C. frame rate D. dynamic range Answer: B Q: how is lateral resolution determined for a pulsed-echo system using a tissue-mimicking test object? A. by observing spaces between reflectors perpendicular to the beam B. by observing spaces between reflectors along the beam path ...

Is there debate within the scientific community about the current causes of global warming? - ️️Climate models lead to the unequivocal conclusion that human emissions of greenhouse gases are responsible for the current rise in global temperatures; There is no debate about this in the scientific community Why does the temperature of the troposphere decrease with altitude? - ️️This layer of the atmosphere is heated from the ground, causing it to be warmest near the surface. As warm air ri...

what isn't known about saturn ~ no one knows how long a day on saturn is what is necessary to be considered a planet ~ 1. a planet orbits the sun directly 2. a planet is large enough to have formed a spherical shape 3. a planet has cleared the neighbourhood around its orbit (this omits pluto as a planet) what is the orgin of water ~ - waster must have been delivered to earth by small bodies at a later stage of the planets evolution ~asteroid like small bodies from the region of jupi...

Where do you expect to find short-period comets in the solar system? Kuiper Belt How big is the nucleus of a comet? A couple of kilometers in diameter Where do you expect to find long period comets in the solar system? Oort Cloud What direction does the ion tail point toward? Always directly away from the sun Where is the heart of every comet? Nucleus What is the hydrogen envelope of a comet? An invisible envelope of hydrogen released via chemical processes What is a comet? Irregularly sha...