Suppose there existed a planet that went around the sun twice as fast as the earth. What would be its orbital size as compared to that of the earth ?

Q: What is the force of gravity on an 80kg astronaut in an orbit around the earth 500 miles above the…

A: Given data The mass of the astronaut is given as m2 = 80 kg. the elevation of astronaut=500 miles…

Q: Three uniform spheres of masses 2kg, 4kg and 6kg placed at the corners of a right triangle, as…

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Q: Given two extrasolar planets have a resonance of 1:3 and the planet closest to the star has an…

A: Orbital resonance is nothing but the ratio of the number of turns completed by them at the same…

Q: A planet that has a mass equal to that of the Earth is orbiting a star that has the same mass as the…

A: Mass of the star = Mass of the sun Mass of the planet = Mass of the earth average distance between…

Q: A space object orbits the earth at 1.25 Mega miles per year. What's the speed in yards per…

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Q: Suppose we discovered a planetary body orbiting our Sun at a distance of 15 times the Earth-Sun…

A: Let distance of earth from sun = D  Time taken by earth to complete one orbit around sun = 1 year…

Q: why does space have zero gravity?

A: SOLUTION IS GIVEN AS

Q: A planet in a circular orbit about a star has an orbital radius of 6.90 au. If the star has a mass…

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Q: Two 700kg masses are separated by a distance of  0.45m. Using Newton’s law of gravitation, find the…

A: Using Newton's law of gravitation, F=Gm1m2r2

Q: The figure below shows a planet traveling in a clockwise direction on an elliptical path around a…

A: It is mentioned the planet is rotating in a clockwise direction. With the help of figure and…

Q: Rotation of the Right Ascension of the Ascending Node (RAAN) is an orbital perturbation cause by the…

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Q: The figure below shows a planet traveling in a counterclockwise direction on an elliptical path…

A: According to Kepler’s second law, the radius vector drawn from a star to a planet orbiting around it…

Q: Suppose a planet lies at a distance of 3 AU from its star when it is at perihelion. Suppose also…

A: In this problem, to calculate orbital speed(v2) at aphelion , we will use the concept of angular…

Q: Which is the strongest force in the universe?

A: Introduction: The universe is made up of matter and energy. Various forms of energy and matter can…

Q: What is the speed of synchronous earth’s satellite in kilometer per hour situated 4.5x10^7 meter…

A: Gravitational force on satelite = centripetal force  Gravitational force = G.M.m/r2..............(i)…

Q: A spacecraft is launched from the surface of a 6.7 x 1024 kg planet. If the spacecraft is moving at…

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Q: star in the Andromeda galaxy is found to have a planet orbiting it at an average radius of…

A: Given radius(r)=3.38 x 1010 m Orbital period(T)=5.46 x 104 s

Q: Two small celestial bodies are sitting 100 miles apart. If they are somehow moved so that they are…

A: Ques: Two small celestial bodies are sitting 100 miles apart. If they are somehow moved so that they…

Q: If I were to shrink the to half its radius, but kept the mass the same, the gravity we experience…

A: acceleration due to gravity , g=GM/r^2 G-gravitational constant M-mass  r-radius given: r'=r/2 to…

Q: Three uniform spheres of masses m1 = 3.00 kg, m2 = 4.00 kg, and m3 = 6.50 kg are placed at the…

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Q: A space shuttle orbits earth at a speed of 21,000km/hr. How far will it travel in 5 hours?

A: Given data: Speed v = 21000 km/hr Time t=5 hours

Q: Suppose that a tiny space invader (m=0.47 kg) and the new space station orbit Earth at the same…

A: when satellite revolves gravitational force provides centripetal force. Hence GMm/r2  = mv2 /r

Q: Suppose there's a hole through the centre of the earth. An object is dropped through that hole from…

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Q: As you pilot your spacecraft in a circular orbit about the Earth, you notice the space station you…

A: The acceleration of any object is the measure of how fast the velocity of the object is changing…

Q: What is a gravitational field, and how can its presence be detected?

A: Gravitational field is a kind of force. Gravitational field at any point in space is defined as the…

Q: Three uniform spheres of masses m1 = 3.00 kg, m2 = 4.00 kg, and m3 = 6.50 kg are placed at the…

A: In this question we are given that three uniform spheres of masses m1 = 3.00 kg, m2 = 4.00 kg, and…

Q: Three uniform spheres of masses m1 = 3.00 kg, m2 = 4.00 kg, and m3 = 6.50 kg are placed at the…

A: This is a concept of resultant force.

Q: Consider a universe where G = 1 N m2/kg2.  Now consider an equilateral triangle of side length 3 m.…

A: Let the magnitude of the masses be M and the length of the side of the equilateral triangle be L.…

Q: An astronaut inside a small spaceship orbiting around the Earth cannot detect gravity. If the space…

A: The value of acceleration due to gravity, inside a small spaceship orbiting around the earth can be…

Q: What would be the difference in your weight if you were four times farther, and 11 times farther…

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Q: An object lying on Earth’s equator is accelerated (a) toward thecenter of Earth because Earth…

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Q: f you're going to travel from Earth to Mars, then at the moment you launch from Earth, Mars should…

A: Mars must be behind the Earth in its orbit around the Sun at the time of launch. Beacuse the time we…

Q: Suppose Earth orbited a star whose mass was double the mass of the sun. If the radius of Earth's…

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Q: The radius of the Earth's orbit is 1.50 x 1011 m and that of Pluto is 5.93 x 1012 m. The star that…

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Q: What is difference between open and closed orbits?

A: close orbit : a close orbit is one in which the orbiting body will eventually return to the same…

Q: Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy.…

A: The mass of the star is Ms=v2RG=v2GvT2π                  v=2πRT=v3T2πG=43.3×103 ms37.60 y3.1557×107…

Q: WHAT HAPPEN WHEN ONE TWIN GOES TO SPACE AND THE OTHER STAYS ON EARTH?

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Q: The acceleration due to gravity there is 0.07 g. After making some measurements in lab, you start…

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Q: Why is gravity zero in space?

A: Required : Why is gravity zero in space?

Q: Taking the age of Earth to be about 4×109years and assuming its orbital radius of 1.5 ×1011 m has…

A: Given data *The number of revolution of Earth is N = 4 × 109 years *The orbital radius of the Earth…

Q: The figure below shows a planet traveling in a counterclockwise direction on an elliptical path…

A: Kepler's 2nd law of planetary motion states that 'the line segment joining the star and the planet…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.