The orbit of a certain a satellite has a semimajor axis of 1.5 * 107 m and an eccentricity of 0.20.Its perigee (minimum distance)and apogee (maximum distance)are respectively:

A) 1.2 *107 m, 1.8 * 107 m B) 3.0 * 106 m, 1.2*107 m C) 6.0 *106 m, 9.0 * 106 m D) 1.0 * 107 m, 1.2 *107 m E) 9.6 * 106 m, 1.8 *107 m A) 1.2 *107 m, 1.8 * 107 m B) 3.0 * 106 m, 1.2*107 m C) 6.0 *106 m, 9.0 * 106 m D) 1.0 * 107 m, 1.2 *107 m E) 9.6 * 106 m, 1.8 *107 m

Exam 13: Gravitation

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Four particles, each with mass m, are arranged symmetrically about the origin on the x axis.A fifth particle, with mass M, is on the y axis.The direction of the gravitational force on M is:

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Question 41

The escape velocity at the surface of Earth is approximately 11 km/s.What is the mass, in units of M_E (the mass of the Earth), of a planet with twice the radius of Earth for which the escape speed is twice that for Earth?

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Question 42

Given the perihelion distance, aphelion distance, and speed at perihelion of a planet, which of the following CANNOT be calculated?

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Question 43

The orbit of a certain a satellite has a semimajor axis of 1.5 * 10⁷ m and an eccentricity of 0.20.Its perigee (minimum distance)and apogee (maximum distance)are respectively:

(Multiple Choice)

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Question 44

An artificial satellite of Earth nears the end of its life due to air resistance.While still in orbit:

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Question 45

The gravitational constant G has the derived units

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Question 46

A planet travels in an elliptical orbit about a star as shown.At what pair of points is the speed of the planet the same?

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Question 47

The speed of a comet in an elliptical orbit about the sun:

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Question 48

To measure the mass of a planet with the same radius as Earth, an astronaut drops an object from rest (relative to the planet)from an altitude of one radius above the surface.When the object hits its speed is 4 times what it would be if the same experiment were carried out for Earth.In units of M_E (the mass of the Earth), the mass of the planet is:

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Question 49

The magnitude of the acceleration of a planet in orbit around the Sun is proportional to:

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Question 50

Earth exerts a gravitational force on the Moon, keeping it in its orbit.The reaction to this force, in the sense of Newton's third law, is:

(Multiple Choice)

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Question 51

Assume that Earth is in circular orbit around the Sun with kinetic energy K and potential energy U, taken to be zero for infinite separation.Then, the relationship between K and U:

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Question 52

A planet in another solar system orbits a star with a mass of 4.0 * 10³⁰ kg.At one point in its orbit it is 250 * 10⁶ km from the star and is moving at 35 km/s.Take the universal gravitational constant to be 6.67 *10^-11 m²/s² . kg and calculate the semimajor axis of the planet's orbit.The result is:

(Multiple Choice)

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Question 53

The elliptical orbit of a planet around the Sun is shown on the diagram.Which of the following statements is true?

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Question 54

Showing 41 - 54 of 54

Exam 13: Gravitation

Four particles, each with mass m, are arranged symmetrically about the origin on the x axis.A fifth particle, with mass M, is on the y axis.The direction of the gravitational force on M is:

The escape velocity at the surface of Earth is approximately 11 km/s.What is the mass, in units of ME (the mass of the Earth), of a planet with twice the radius of Earth for which the escape speed is twice that for Earth?

Given the perihelion distance, aphelion distance, and speed at perihelion of a planet, which of the following CANNOT be calculated?

The orbit of a certain a satellite has a semimajor axis of 1.5 * 107 m and an eccentricity of 0.20.Its perigee (minimum distance)and apogee (maximum distance)are respectively:

An artificial satellite of Earth nears the end of its life due to air resistance.While still in orbit:

The gravitational constant G has the derived units

A planet travels in an elliptical orbit about a star as shown.At what pair of points is the speed of the planet the same?

The speed of a comet in an elliptical orbit about the sun:

The magnitude of the acceleration of a planet in orbit around the Sun is proportional to:

Earth exerts a gravitational force on the Moon, keeping it in its orbit.The reaction to this force, in the sense of Newton's third law, is:

Assume that Earth is in circular orbit around the Sun with kinetic energy K and potential energy U, taken to be zero for infinite separation.Then, the relationship between K and U:

The elliptical orbit of a planet around the Sun is shown on the diagram.Which of the following statements is true?

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The escape velocity at the surface of Earth is approximately 11 km/s.What is the mass, in units of M_E (the mass of the Earth), of a planet with twice the radius of Earth for which the escape speed is twice that for Earth?

The orbit of a certain a satellite has a semimajor axis of 1.5 * 10⁷ m and an eccentricity of 0.20.Its perigee (minimum distance)and apogee (maximum distance)are respectively: