One astronomical unit (AU) is defined as the average distance between Earth and the Sun, approximately 149,500,000 kilometers (km). What is the distance in AU between the Sun and Mercury, which is 58,000,000km from the Sun?  a.2.58 b.0.4 c.388.0 d.3.9

Q: A Was not surprising, because the existence of a massive "Planet X" had be B Was surprising, due to…

A: Solution: The Eris orbit is much more eccentric and due to that, it is called a scattered disc…

Q: Electronic communication via radio travels at approximately the speed of light (186,000…

A: Given: The speed of the light is 18600 mi/s. The distance of Pluto from the Earth is 3.6x109 mi.

Q: Which unit of measurement is larger?

A: 1 rad = 57.3 degree. So for 1 rad we required 57.3 degree.  So 1 degree = (1/57.3) < 1 rad

Q: A planet's speed in orbit is given by     V = (30 km/s)[(2/r)-(1/a)]0.5   where V is the planet's…

A: The speed of the planet in orbit is V=(30 km/s)[(2r-1a)]0.5 To find the Earth's velocity in its…

Q: 110. Which graph best represents the relationship between the mass of an object and its distance…

A: For an object as big as a planet, the distance considered in the inverse square law must be measured…

Q: Observéd Phases UI ven heliocentric módel geocentric model sun sun Earth Earth epicycle orbit not to…

A: The position of venus is between sun and earth and thus it must predict the phases of venus.

Q: The Schwarzschild radius of our sun is   a. 3 km.   b. 6 km.   c. 9 km.   d. 30 km.

A: (a) 3 km

Q: The moon’s circular orbit about the Earth has a radius of 384,000 km and a period of about 30 days.…

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Q: Match each Greek with the discovery attributed to them. (If the first corresponds to B, and the next…

A: 1) (C) The credit for the discovery of the Relative sizes of the earth, moon and the sun goes to…

Q: What is the approximate percentage difference in diameter from Earth to Mars? a. 0.87% b. 1.05%…

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Q: Which of the following statements is true?

A: Option 4) is correct , earth has water in solid liquid and gaseous form while Mars have only solid…

Q: The Moon has radius RMoon = 1.7 x 106 m and has an angular width on the sky of 1/2° (8.7 x 10-3…

A: Solution: a). The radius of the moon is given. RMoon=1.7×106m The angular width of the moon is,…

Q: The distance between Jupiter and the sun is usually measured in astronomical units.one astronomical…

A: An astronomical unit can be defined as the mean distance between Sun - Earth or it is  half of the…

Q: If you know the radius of a planet, what additional information besides universal constants do you…

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Q: The radius of the Earth's orbit is 1.50  1011 m and that of Mars is 2.28  1011 m. The star that this…

A: The radius of mars is, R=2.28×1011 m The mass of the sun is, M=1.989×1030 Kg The gravitational…

Q: Imagine that an object is moving around the Sun. What will be the orbital period of the object in…

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Q: The planet Earth has a semi-major axis of a = 1.00 AU and an orbital period of P= 1 sidereal year =…

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Q: 10. Match Kepler Laws with the correct description. Kepler's Second Law Kepler's Third Lav Kepler's…

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Q: If the Moon is in the waning gibbous phase tonight, approximately how long will it be until the Moon…

A: between a full moon and New moon it takes 2 weeks time. During that process full moon becomes waning…

Q: The mass of the Earth is about 6 x 1021 metric tons, and the mass of the Sun is about 2 x 1027…

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Q: UUse the table to answer questions T13 A student collects the following data about the Sun, stars,…

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Q: a method for determining the sizes of the orbits of pl from the sun than Earth. His method involved…

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Q: 9. Pluto's orbit around the Sun is highly elliptical compared to the planets in our Solar System. It…

A: Perihelion distance  = 29.7 AUAphelion distance = 49.5 AUTo find = a) Semi-major axis…

Q: sun's position relative to planetary orbits

A: Solution

Q: The first proof that the Earth orbits the Sun was provided by   A)  Tycho's observations…

A: The first proof that the Earth orbits the Sun was provided by Galileo's observation of the phases of…

Q: 4) The average orbital distance of a planet is 4 times the average orbital distance of the Earth.…

A: Average orbital distance of Earth = rE = r Average orbital distance of planet = rP = 4r Period of…

Q: 2. During a sunrise, the Sun appears to "rise up" from the horizon. Why does this happen? A. Earth…

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Q: Suppose a Moon takes 15.8 days to orbit its host planet. Convert this orbital period into Earth…

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Q: 9.) Find the time it takes Saturn to orbit the sun . Show all work a.) in terms of seconds b.) in…

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Q: It is important to have an idea about the distances between and relative sizes of celestial objects…

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Q: The earth's moon [select all true statements]   Question 39 options:   has canals and visible…

A: We need to find the statements that are true about our moon.

Q: Which of the following numbers is a reasonable number for someone's height in AU.

A: In the following problem, we have to choose the appropriate option which can be reasonable for…

Q: The Universal Law of Gravitation a. How does halving the distance between two objects affect the…

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Q: Of the following methods, which one can you use to directly calculate the peak altitude of the Sun…

A: In this question we have to answer how we can calculate the peak altitude of the Sun in the sky.…

Q: 1. The reason that there are two daily tides on Earth is that one occurs when the sun is overhead…

A: True, because Tides occur due to moon pull but also due to the sun’s gravity.

Q: and craters b.that the Sun has imperfections known as sunspots c.that four small points of light…

A: An astronomical unit Galileo made many discoveries. Which one of these is not attributed to him?…

Q: Assume you live on the Moon near the center of the face that looks toward Earth. a. If you saw a…

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Q: An object is found orbiting the sun at a distance of 70 AU what is the objects orbital period? A.…

A: Solution: Given: 1 AU = one astronomical unit = 1.496 x 1011 m 1 year = 3.156 x 107 s  G =…

Q: When the Earth passes directly between the Sun and Mars, the Earth and Mars are closest to each…

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Q: According to Isaac Newton, the value of the constant, k, in Kepler's Third Law (P2 = ka3) is…

A: Kepler's Third Law, also known as the Law of Harmonies, states that the square of the orbital period…

Q: 1. The diameter of the Sun is equal to 1.392*10^9 m, and the distance from the Sun to Saturn is…

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Q: You land on Mars and observe that one of its moons (Phobos) has an orbital period of 7.66 hours. If…

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