Why are there no chondrules in achondritic meteorites?
Q: If you saw Comet Halley when the comet was 0.8 AU from Earth and you observed a visible tail 4…
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Q: Why do astronomers think the asteroids were never part of a full-sized planet?
A: Asteroids are rocky objects that orbit Sun. They are very small to be considered a planet. They are…
Q: 2GM The asteroid Vesta has a mass of 2.59 x 1020 kg and an average radius of about 263 km (2.63 x 10…
A: Given data The mass of the asteroid is M = 2.59 x 1020 kg. The radius of the asteroid is r = 263…
Q: If you saw Comet Halley when the comet was 0.8 AU from Earth and you observed a visible tail 4…
A: For Small-angle approximation The arc length at distance r and angle θ is given by
Q: It is believed there are 2.7 x 1012 comets in the Oort Cloud, which has a radius of 71000.0 AU.…
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Q: The European Space Agency’s (ESA) Rosetta mission reached Comet 67P at the time when the comet…
A: The picture shows a jet emerging from the comet as captured by Rosetta when the comet was at its…
Q: Suppose an asteroid has a semimajor axis of 4 AU. How long does it take the asteroid to go around…
A: Given data: Semi major axis of asteroid ra= 4 AU
Q: Differentiate between an gas tail and dust tail of a comet.
A: Comets are the leftover materials from the formation of the solar system. They are made of rock,…
Q: It is believed that there are a 1.2 × 1012 comets in the Oort Cloud, which has a radius of 74000.0…
A: Number of comets in Oort cloud (N) = 1.2×1012Radius of each comet (R) = 74000 A.U
Q: What heat-producing mechanism keeps Io volcanically active? How does this differ from the way in…
A: The heat-producing mechanism that keep lo volcanically active is tidal heating of lo due to tidal…
Q: The mass of an average comet's nucleus is about 1.0 ✕ 1014 kg. If the Oort cloud contains 2.0 ✕ 1011…
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Q: Calculate the force of gravity that exists between an asteroid with a mass of 8.5 × 106 kg and a…
A: Given:- The mass of the asteroid is M = 8.5×106 kg The mass of the meteor is m = 2350 kg The…
Q: Why do astronomers refer to carbonaceous chondrites as unmodified or "primitive" material?
A: Chondrites or stony meteorites are the most common types of meteorites in a meteorite fall. Roughly…
Q: What sources of data might help us determine more about how Earth's Moon formed?
A: The formation of the Earth has happened somewhat about 4.5 billion years back. According to the…
Q: If you saw Comet Halley when the comet was 0.4 AU from Earth and you observed a visible tail 3…
A: Given Distance = 0.4 AU Angle = 3 degree 1 AU = 1.5×109 km
Q: A comet’s perihelion distance is 1 AU, and its aphelion distance is 15 AU. In the following, we make…
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Q: What determines the velocity with which an asteroid impacts Earth?
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Q: If you saw comet Halley when the comet was 0.9 AU from Earth and you observed a visible tail 5…
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Q: Why is it difficult to accurately state how long a specific comet is?
A: it has been believing that the comets are the remnants of the materials formed the solar system…
Q: It is believed that there are 2.4 x1012 comets in the Oort Cloud, which has a radois of 72000.0 AU.…
A: Given value--- It is believed that there are 2.4 x1012 comets in the Oort Cloud, which has a radois…
Q: Halley's Comet has a period of about 76 years. How distant will this comet be from the Sun?
A: Given: The time period of the comet is 76 years.
Q: What does the cosmic ray exposure age tell us about the history of a meteorite?
A: Cosmic rays are can be defined as high-energy atomic nuclei or protons which has a velocity closer…
Q: For the following, determine whether the type of explanation offered is theoretical (the kind used…
A: The given explanation is:No one noticed the comet before because of cloud cover
Q: Suppose we have two comets with the following orbital parameters: Comet 1: Eccentricity = 0.1,…
A: Given that, Comet 1: Eccentricity = 0.1, Semi-major axis(R1) = 0.5 AU Comet 2: Eccentricity = 0.9,…
Q: Where does the gas and the dust in the coma of a comet come from?
A: Comets can be defined as leftover materials from the formation of the solar system. They are…
Q: If cometary nuclei were heated during the formation of the solar system by internal radioactive…
A: The solar system was formed from the dust, rock, and ice that were present in the interstellar…
Q: If you saw Comet Halley when the comet was 0.3 AU from Earth and you observed a visible tail 5…
A: Given Data Distance of the Comet Halley from Earth is given as d=0.3 AU=(0.3×1.5×109) km=4.5×108 km…
Q: If you saw Comet Halley when the comet was 0.5 AU from Earth and you observed a visible tail 6…
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Q: If you saw Comet Halley when the comet was 0.3 AU from Earth and you observed a visible tail 5…
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Q: What does a comet look like when it is far from the Sun? How does its appearance change when it is…
A: Comets are dirty irregular snowballs when they are far from the sun. As it acquires mass it starts…
Q: The mass of an average comet's nucleus is about 1.0 ✕ 1014 kg. If the Oort cloud contains 2.0 ✕ 1011…
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Q: The mass of an average comets nucleus is about 1.0 x 10^14 kg. If the Oort Cloud contains 20 x 10^11…
A: Mass of the Oort cloud in terms of mass of Earth
Q: The mass of an average comet's nucleus is about 1.0 ✕ 1014 kg. If the Oort cloud contains 2.0 ✕ 1011…
A:
Q: Why do astronomers suspect that Saturn's moon Enceladus is geologically active?
A: Enceladus is the sixth-largest moon of Saturn. It is covered in fresh ice which makes it one of the…
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- A typical comet contains some 1013 kg of water ice. How many comets would have to strike Earth in order to account for the roughly 2×1021 kg of water presently found on our planet? If this amount of water accumulated over a period of 500 million years, how frequently must Earth have been hit by comets during that time?Annual meteor showers occur when the Earth passes through the orbital path of acomet. The intensity of these showers vary from year to year. Which of the following may bethe reason for this? Group of answer choices - Meteor showers are not caused by comet debris - Sun's temperature - en distribution of debris along comet's orbit - Earth's rotation axisRe-order the numbers so the events occur in the correct order, with the oldest event as number 2, and the youngest event as number 13. 2. Now at roughly 100% of present-day mass and the asteroid bombardment over, Earth begins cooling and differentiating. As the outer layer of the Earth cools and solidifies, lighter elements and compounds rise to the surface while the denser ones sink to the core 3. The now differentiated ice, gas, and dust of the solar accretion disc conglomerates together into asteroids from gravity 4. "The Big Whack" A Mars-sized protoplanet we call Theia collides with primitive Earth, adding even more energy and mass 5. The Big Bang 6. As the early atmosphere cools, water vapor is eventually cool enough to condense into liquid water, eventually covering the planet in an ocean 7. The debris from the collision of Earth and Theia produce a ring in orbit. This ring eventually coalesces into the Moon, just as Earth coalesced from the solar accretion disc 8. A nebula…
- Originally thought to be the realm of comets, over the past two decades we discovered that the Kuiper Belt region hosts also many other objects similar in size to Pluto (Figure 22). This seems to imply that there are two completely different types of objects in the region. Do you think that both types of objects formed in this region, or some of these may have migrated to this region at a later time? Briefly explain your reasoning.What is the orbital period of a scattered disk object with perihelion at 40 AU and aphelion at 100 AU? ( 2What is the evidence that suggests asteroids might have geologically active surfaces?
- A typical comet contains some 1013 kg of water ice. How many comets would have to strike Earth in order to account for the roughly 2×1021 kg of water presently found on our planet? (Hint: simple division) If this amount of water accumulated over a period of 500 million years, how frequently must Earth have been hit by comets during that time? (Hint: Calculate, on the average, how many comets hit the Earth per year during that time.)Why do we see comet Halley only every 76 years? Explain your reasoning.Calculate the orbital period of a comet nucleus in the Oort cloud.
- In January 2005, the Huygens probe landed on Saturn's moon Titan, the only satellite in the solar system having a thick atmosphere Titan's diameter is 5150 km, and its mass is 1,35 x 10* kg. The probe welghed 2120 N on the earth.What is the maximum angular diameter of the largest asteroid, Ceres, as seen from Earth?