Astronomy Today Volume 2: Stars and Galaxies (9th Edition)
9th Edition
ISBN: 9780134566214
Author: Eric Chaisson, Steve McMillan
Publisher: PEARSON
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Chapter 2, Problem 7P
To determine
The speed of a spacecraft moving in a circular orbit just above the lunar surface, and the escape speed from the Moon if the Moon's mass is
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Chapter 2 Solutions
Astronomy Today Volume 2: Stars and Galaxies (9th Edition)
Ch. 2 - Prob. 1DCh. 2 - Prob. 2DCh. 2 - Prob. 3DCh. 2 - Prob. 4DCh. 2 - Prob. 5DCh. 2 - Prob. 6DCh. 2 - Prob. 7DCh. 2 - Prob. 8DCh. 2 - Prob. 9DCh. 2 - Prob. 10D
Ch. 2 - Prob. 11DCh. 2 - Prob. 12DCh. 2 - Prob. 13DCh. 2 - Prob. 14DCh. 2 - Prob. 15DCh. 2 - Prob. 1MCCh. 2 - Prob. 2MCCh. 2 - Prob. 3MCCh. 2 - Prob. 4MCCh. 2 - Prob. 5MCCh. 2 - Prob. 6MCCh. 2 - Prob. 7MCCh. 2 - Prob. 8MCCh. 2 - Prob. 9MCCh. 2 - Prob. 10MCCh. 2 - Prob. 1PCh. 2 - Prob. 2PCh. 2 - Prob. 3PCh. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - Prob. 6PCh. 2 - Prob. 7PCh. 2 - Prob. 8P
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- What is the orbital period of a satellite orbiting just above the surface of the asteroid in Problem 11?arrow_forwardIo, a satellite of Jupiter, has an orbital period of 1.77 days and an orbital radius of 4.22 105 km. From these data, determine the mass of Jupiter.arrow_forwardA planet has two moons of equal mass. Moon 1 is in a circular orbit of radius r. Moon 2 is in a circular orbit of radius 2r. What is the magnitude of the gravitational force exerted by the planet on Moon 2? (a) four times as large as that on Moon 1 (b) twice as large as that on Moon 1 (c) equal to that on Moon 1 (d) half as large as that on Moon 1 (e) one-fourth as large as that on Moon 1arrow_forward
- If mars has a mass of 6.4 x 1023 kg and a radius of 3.39 x 106m. What is the escape speed needed from the surface of mars?arrow_forwardMars has a radius of 3 390 km and a mass of 6.4 X 10^23 kg. A space probe carrying Vikings 1 Lander is about to leave the planet. What minimum velocity must the space probe have in order to escape Mars' gravity? (Gravitational Constant = 6.67 X 10^ - 11 Nm^2/kg^2)arrow_forwardIn order to survey possible landing spots on the moon, the Apollo 10 mission needed to orbit the moon at no more than 1670 m/s in order to get good confirmation of the parameters for landing. At what altitude above the moon's surface (m = 7.348 x 1022 kg; r = 1.7381 x 106 m) did the capsule need to orbit?arrow_forward
- Comet Halley orbits the Sun with a period of 76 years and in 1986, had a distance of closest approach to the Sun, its perihelion distanc Rp, of 8.9x1010 m. a) What is the comet's farthest distance from the Sun, which is called its aphelion distance Ra? b) What is the eccentricity of the orbit of comet Halley?arrow_forwardIf the radius of Mercury is ~2,440 km, what is the required tangential orbital velocity needed to maintain a 100 kg satellite 1,500 km from the planet’s surface? (The mass of Mercury is Mm = 3.3 x 1023 kg)arrow_forwardHow much energy is required to lift a 10 kg rock from the surface of the Earth and place it in a circular orbit just 10 km above sea level? Assume Earth's radius is about 6371 km.arrow_forward
- What is the gravitational potential energy of Saturn due to the Sun? Assume MSaturn = 5.68×1026 kg, MSun = 2.0×1030 kg, and the orbital distance is r= 1.43×109 km.arrow_forwardMany spacecraft have visited Mars over the years. Mars is smaller than the earth and has correspondingly weaker surface gravity. On Mars, the free-fall acceleration is only 3.8 m/s^2. What is the orbital period of a spacecraft in a low orbit near the surface of Mars? The radius of Mars is 3.4×10^6 marrow_forwardIn 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.40×1016 kg and a radius of 8.20 km What is the speed of a satellite orbiting 4.90 km above the surface? What is the escape speed from the asteroid?arrow_forward
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