About how many exoplanets have been detected? Group of answer choices 2 dozen a few hundred a few thousand a few million more than a billion

Q: a)  Suppose the Earth grew to its present size in 1 million years through the accretion of particles…

A: Ques: Suppose the Earth grew to its present size in 1 million years through the accretion of…

Q: How old is our solar system?

A: The solar system is the gravitational bound system of the Sun and the objects that orbit it. The age…

Q: How can a planets atmosphere affect the width of the habitable zone in its planetary system?

A: The area around the heavenly star where the temperature is not very low nor very high is known as…

Q: If you stood on Earth during its formation, during which it captured about 1.4 ✕ 1011 particles per…

A: The rate of capturing particle is, dndt=1.4×1011/sn=dndtS

Q: 21) What evidence is there that Neptune's moon Triton has been geologically active recently?

A: Triton is the largest moon of the planet Neptune. It orbits in the direction opposite to Neptune's…

Q: Compare Titan to Rhea. Estimate the strength of surface gravity on Titan compared to the gravity on…

A: Given: Titan Radius: 2,575 km, Mass: 1.35 x 1023 kg Rhea Radius: 764 km, Mass: 2.31 x 1021kg The…

Q: The nebular theory of the formation of the solar system successfully predicts all but one of the…

A:

Q: Fill in the blank. A planet that is 5 times the massive of Jupiter, and orbits at 0.1 au from its…

A: A planet beyond the Solar System is known as an exoplanet or extrasolar planet. In 1917, the first…

Q: Why don't Terrestrial planets have rings like the Jovian planets?

A: Terrestrial planets are the ones that have a rocky surface and are smaller in size and mass.…

Q: Which of these views cannot be used when trying to detect exoplanets using the radial velocity…

A: Let's go through each of the three cases and explain why the views cannot be used for detecting…

Q: What appears to be the most common size of exoplanets?   Jupiter size         Neptune size…

A: Exoplanets are found outside of solar system. Their radii is 1.4 to 2.8 times the radius of earth.

Q: If you stood on Earth during its formation, during which it captured about 1.5 x 10^11 particles per…

A:

Q: Which of the following events can NOT be explained by a giant impact event? O The large metallic…

A: The events which can be explained by giant impact event are the formation of the moon , the extreme…

Q: What is the range of density for the outer planets (in g/cm3)? 1.2 to 5.5 2.2 to 5.5 2.2 to 6.5 3.3…

A: Outer planets are less dense and having density about 1 g/cm3.

Q: 4b) the average density of the earth is 5.5 g/cm^3. Which has the greater density 1g of uranium of…

A: We are given with average density of earth i.e 5.5 grams per cubic cm

Q: A sample from a meteorite that landed on Earth has been analyzed, and the results shows that out of…

A:

Q: Life on Earth is considered by many scientists to have evolved because of a string of very fortunate…

A:

Q: why do astronomers say that terrestrial planets are comomn in our galaxy?

A:

Q: analyze a sample of a meteorite that landed on Earth and find that  7/8  of the uranium-238…

A: Discovery of Radioactivity: In 1896 Henri Becquerel and Marie Curie discovered that certain isotopes…

Q: Today, the largest radio telescope in the world is located in     Puerto Rico     Russia…

A: The square kilometer Array observetory is the largest telescope in the World. To be considered…

Q: 1. Which of the outer planets have compositions dominated by the "ices" ingredient? Check the…

A: (1) Uranus and Neptune are the two the outer planets have compositions dominated by the "ices"…

Q: The half-life of Uranium-235 is 700 million years, which makes it useful for dating meteorites. If a…

A: We have to find age of meteorite containing uranium.Half life of uranium is 700 million years

Q: What creates the Earth's magnetic field? the moon the liquid iron/nickel core the atmosphere the…

A: The Earth's magnetic field is created by the liquid iron/nickel core on the outer core…

Q: Astronomers are able to use techniques like measuring the Question Blank 1 of 2 (hint: two words) of…

A: Requied : Fill in the blanksAstronomers are able to use techniques like measuring the Question Blank…

Q: Which of these planetary surfaces is the youngest on average, and what evidence do you use to…

A: The Moon is often the youngest of the mentioned planetary surfaces. This claim is supported by a…

Q: What are the conditions necessary for a terrestrial planet to have a strong magnetic field? O A…

A: Necessary condition  for a terrestrial planet to have a strong magnetic field :-  Fast rotation…

Q: ) Science fiction movies often portray asteroid belts as crowded, dense regions that require…

A: Given data: The number of asteroids, N=300000. The radius of each asteroid, r=100 km. The thickness…

Q: What is an exoplanet? Group of answer choices A planet in our solar system beyond Pluto. Any planet…

A: Our solar system consists of eight planets. These planets are revolving around sun owing to…

Q: Explain the light emission by meteorite?

A: Asteroids are rocky bodies that are mostly found in the asteroid belt that exists between Mars and…

Q: If there was a planet orbiting a first generation star, which planet in our solar system would it…

A: First-generation stars are very metal deficient (heavier than hydrogen) but massive. They are huge…