Jackline98

How we can simulate gravity on a spacecraft. - ️️By rotating the spacecraft, generating a centrifugal force that simulates gravity. "Down" always points outwards from the center of rotation How we know that the Oort Cloud is a sphere. - ️️Long period comets come form the oort cloud, a spherical collection of billions of small icy objects. We know it's a sphere because long period comets come at us from all directions. Why are there more impact cheaters on the moon today than ...

What provides the energy for hurricanes and what happens when they venture over land? - ️️Tropical cyclones get their energy from warm tropical waters. When hurricanes venture over land they lose their energy source, causing their winds to diminish rapidly. -With sustained winds of 196 mph (gusts up to 235 mph), Typhoon Haiyan (2013) was the strongest cyclone ever to make landfall (hit the Philippines at full strength) -Longest lasting and farthest traveling: Hurricane and Typhoon John, 19...

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...

How do earthquake early warning systems work? - ️️seismic waves travel below the speed of light; therefore, a warning can arrive seconds before an earthquake (since EM radiation travels at the speed of light) Why does the mantle below the asthenosphere not flow easily? - ️️it is at higher pressure than the asthenosphere Why does the US Geological Survey believe there is high seismic hazard in the Midwest? - ️️historical data from previous earthquakes shows that a 500 year old fault...

Which are the terrestrial planets? - ️️Mercury, Venus, Earth, Mars The relative angular velocity of Earth's satellites (natural and otherwise) based on their orbital distance - ️️Satellites orbit more slowly the more distant they orbit Satellites orbit faster the less distant they orbit The relative distance from the Sun to the giant planets - ️️Jupiter- 5.2, Saturn- 9.54, Uranus- 19.2, Neptune- 30.06, (AU) The relative distance from the Sun to the terrestrial planets - ️️...

How earthquake magnitudes are related to the relative magnitude of shaking? - ️️For every whole number increase in magnitude the amplitude of shaking goes up by a factor of 10. What is a mid-ocean ridge - ️️a long, seismically active submarine ridge system situated in the middle of an ocean basin and marking the site of the upwelling of magma associated with seafloor spreading/divergent margins. What is a passive plate margin? - ️️When a boundary between continental crust and ocean...

How conduction, convection, and radiation transfer heat - ️️*Convection: Heat transfer through fluid motions of liquids and gases, as well as solids that flow like a fluid. *Conduction: Heat transfer through a solid through the spread of vibrations on the atomic scale. *Radiation: heat transfer through electro - magnetic waves (light) through a transparent (clear) medium. How Earth's magnetic poles are not at the geographic poles and are mislabeled - ️️*Do not confuse Earth's ge...

How climate change can influence the weather. - ️️The number of hot and extremely hot days has jumped dramatically compared to pre-1980 already. Hot day: temps more than 10 F above seasonal average, extremely hot day: Temps more than 20 F above seasonal average More severe and frequent local storms, more extreme temperatures, more frequent extreme weather events, just take the weather dial and turn it up to 1000 How greenhouse gases cause warming of the Earth's atmosphere. - ️️Aeros...

Why the gas giants had to form within 3-10 million years from the birth of the Sun - ️️they had to attract hydrogen and helium gases before these were blown away by the solar wind Why the giant planets have faster spin rates than terrestrial planets - ️️because they are more massive Why the interiors of large asteroids and planets are very hot inside - ️️when they get big enough they heat up inside due to the heat of accretion and radioactive decay, causing the interior to melt Wh...

We now use radioactive decay to determine the age of geological materials. What is one feature of an ideal material for radiometric dating? - ️️No initial daughter isotope when the material formed We now use radioactive decay to determine the age of geological materials. Which of the following is NOT a feature of an ideal material for radiometric dating? - ️️The material incorporated a large amount of parent isotope as it formed Daughter isotopes cannot easily move out of the material ...