If cometary nuclei were heated during the formation of the solar system by internal radioactive decay rather than by solar radiation, how would comets differ from what is observed?
Q: You observe a comet 0.46 AU from Earth with a tail that is 1.7 degrees long. How long is the tail in…
A: Given: The distance of the comet is 0.46 AU. The tail is 1.7 degrees long. The width of US is 4313…
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: Assume that a 10-km asteroid hits the earth at about 20 km/s Computer simulations suggest that for…
A: Given: 10 km radius, spherical asteroid hits the earth. The volume of the asteroid=V = 4/3 pi R3 =…
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: You analyze a sample of a meteorite that landed on Earth and find that 15 16 of a certain type…
A: Given that The certain type of the radioactive atoms have decayed = 1516No Where…
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: Why are there no chondrules in achondritic meteorites?
A: A chondrite is a non-metallic stony meteorite. It is thought to be formed directly from condensation…
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: What is the difference between the Oort cloud and Kuiper belt of objects?
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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: Suppose there are 106 (1 million) asteroids that are 1.03 km in radius. If they were all combined…
A: Here, we assume that density of each old asteroids are same and the newly formed asteroid is also…
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: 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: If the velocity of the solar wind is about 4.0 ✕ 102 km/s and the visible tail of a comet is 8.0 ✕…
A: Using the equation relating velocity, distance and time
Q: 2. If the Nova comet has perfectly spherical core of a diameter 50 km, what is its shape seen by an…
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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: 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: 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: ✕ 1014 kg. If the Oort cloud contains 2.0 ✕ 1011 comet nuclei, what is the mass of the cloud in…
A: Given as, m=1×1014 kgn=2×1011 comet uncleiMe =5.97×1024 kgMu =14.5Me
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: What is the escape velocity from the surface of Eneladus if it's mass is 1.1 x 10^20 kg and it's…
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Q: The mass of an average comet's nucleus is about 1.0 x 1014 kg. If the Oort cloud contains 2.0 x 101l…
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Q: The diameter of an asteroid is 954 km and its mass is 9.4 x 1020 kg. What is the density in g/cm³?…
A: Write the formula for the density of the asteroid. ρ=MV=M43πR3=M43πd23…
Q: Assume that a 10-km asteroid hits the earth at about 20 km/s An amount of water equal to about…
A: Given: The velocity of the asteroid hitting the earth: v = 20 km/s = 20000 m/s [1 km = 1000 m] Let…
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 kind of molecules have been found on extraterrestrial meteors ?
A: Extraterrestrial meteors are space rocks that are composed mostly of silicon, nickel, and iron. They…
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: If you saw Comet Halley when the comet was 0.9 AU from Earth and you observed a visible tail 4…
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Q: If the velocity of the solar wind is about 4.0 ✕ 102 km/s and the visible tail of a comet is 3.0 ✕…
A: Given: v=400 km/s d=3×108 km
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 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 the velocity of the solar wind is about 4.0 x 102 km/s and the visible tail of a comet is 5.0 x…
A: The problem is based upon distance time equation . We know that, distance is speed times the time…
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 the velocity of the solar wind is about 4.0 ✕ 102 km/s and the visible tail of a comet is 5.0 ✕…
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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: 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…
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Q: comet with a 2km diameter will make a crater about 20 km in diameter. If the comet has a mass of 4.5…
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Q: What is the purpose of the asteroid belt?
A: The asteroid belt The asteroid belt orbits between Mars and Jupiter. It is also called as the main…
Q: The asteroid Pallas has a mass of 2.11 x 10^20 kg and an average radius of about 2.6 km (2.56 x 10^2…
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Q: Tutorial You observe a comet 0.32 AU from Earth with a tail that is 1.7 degrees long. How long is…
A: GivenYou observe a comet 0.32 AU from Earth with a tail that is 1.7 degrees long. How long is the…
Q: A typical comet contains some 1013 kg of water ice. How many comets would have to strike Earth in…
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Q: Annual meteor showers occur when the Earth passes through the orbital path of a comet. The intensity…
A: Meteor showers occur when Earth passes through debris left over from the disintegration of comets.…
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