What’s the answer to 4,5,6 , 山Arlal|三1Normal text1.OLB.II II .I1 ।।।।।।८ ।।।।4.State Kepler's 3 laws of planetary motion.I5.Based on what you know of the Earth, does the Earth have an orbit with a low or high eccentricity?6.What happens to the shape of a planet's orbit as its eccentricity increases?7.What is the relationship between the position of the Sun and the elliptical orbit of all planets?

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College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And The Law Of Gravity

Section: Chapter Questions

Problem 47AP: (a) One of the moons of Jupiter, named Io, has an orbital radius of 4.22 108 m and a period of 1.77...

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(a) One of the moons of Jupiter, named Io, has an orbital radius of 4.22 108 m and a period of 1.77 days. Assuming the orbit is circular, calculate the mass of Jupiter, (b) The largest moon of Jupiter, named Ganymede, has an orbital radius of 1.07 109 m and a period of 7.16 days. Calculate the mass of Jupiter from this data, (c) Are your results to parts (a) and (b) consistent? Explain.
The orbit of mars about the sun is elliptical with the sun at one focus. If the minor axis of this orbit is 2.25?10^8 kilometers and the eccentricity is about 0.093, determine the greatest distance of mars from the sun. a. 1.13?108?? b. 1.23?108?? c. 1.33?108?? d. 1.43?108??
32. At a given point above the surface of the Earth, the gravitational acceleration is equal to 5.4 m/s². Take the Earth mass M = 5.97x1024 kg and radius R = 6378 km. The altitude of this point, above the surface of the Earth, in km, is closest to: 33. What does the scale read? (Hint: t = rxF) a. 6900 b. 2800 C. 4200 d. 5700 e. 2200 a. b. C. d. a. b. C. d. e. C. 34. A solid cylinder of 5 cm radius is positioned on a frictionless plane inclined at 30 degrees above horizontal. A force F is exerted by a string wrapped around the spool. When F has a certain critical value the center of mass of spool does not move. When this is the case, what is the angular acceleration of the spool? (Hint: t = la) 0001 1910 a. b. e. 500 N 1000 N 2000 N 4000 N 392 rad/s² 340 rad/s² 260 rad/s² 196 rad/s² 98 rad/s² Scale 30" Massless rod 1000 N 4.05 138 35. Two buckets spin around in a horizontal circle on frictionless bearings. Suddenly, it starts to rain. As result, The buckets speed up because the…
1. A planet with a mass of 7.5 x 1025 kg moves around a 9.5 x 1031 kg star in a perfectly circular orbit with a radius of 9.3 x 107 km. The universal gravitational constant is G = 6.67 × 1011 m3 kg1 s2. a. What is the magnitude of the force of gravity that the star exerts on the planet?10, %3D b. What is the speed of the planet's orbit around the star, in units of km/s? c. What is the period of the planet's orbit around the star, in Earth days?
5. Deimos, one of Mars's moons, has a mass of about 2.0 x 10¹5 kg and a diameter of about 12 km. An astronaut standing on the surface of Deimos wants to see if she can throw a baseball all the way around the moon. a. At what speed (in miles/hour) would she have to throw the ball so that it would move in a circular orbit just above the surface of the moon? (Assume Deimos is spherical.) b. How long would it take (in hours) before the ball returned to her if she threw it at the speed you found in part (a)? c. What is the free-fall acceleration g for Deimos, in m/s²?
46. A remote-sensing satellite travels in a circular orbit at a constant speed of 8.2 × 10³ m/s. (a) What is the speed of the satellite in kilometres per hour? (b) Determine the altitude in kilometres of the satel- lite above Earth's surface. (c) What is remote sensing? Give some practical uses of a remote-sensing satellite.
2. Turksat 5A Satellite is launched in a circular orbit 700 km above the earth's surface. a. How long does it take the satellite to make one orbit b. What is the speed (km/s) of the Turksat 5A in this orbit?
Hi! Sorry for the inconvenience but can you please answer these two questions? Thanks! 1. Scientists once hypothesized the existence of a planet called Vulcan to explain Mercury’s precession. Vulcan is supposed to be between Mercury and the Sun with a solar distance equal to 2/3 of that of Mercury. What would be its supposed period? 2. What is the period T of a planet which radius is as twice as of Earth when it completes one revolution in 875 days? (Earth radius = 6.38 x 10^5)
A 2.0 X 103 kilogram car travels at a constant speed of 12 meters per second around a cir- cular curve of radius 30. meters. 192. What is the magnitude of the centripetal acceleration of the car as it goes around the curve? (1) 0.40 m/s2 (2) 4.8 m/s2 (3) 800 m/s2 (4) 9600 m/s2
mass of 5.98 x 1024 kg. The radius of Earth 11. Sally has a mass of 50.0 kg and Earth has a mass of 5.98 × 10 kg. The radius of Earth is 6.371 x 10 m. a. What is the force of gravitational attraction between Sally and Earth? b. What is Sally's weight?
1. Most galaxies, including our own Milky Way, have supermassive black holes at their centers. Recently, astronomers were able to track one star, named S2, as it orbited the black hole at the center of our galaxy. The star's actual orbit is elliptical, but we'll model it as a circular orbit. S2 has a period of 15 years and an orbit radius of 1000 au, where 1 au = 1 astronomical unit is the distance of the earth from the sun. a. What is the speed of S2? Give your answer as a fraction of c, where c is the speed of light, c=3.0×10^8m/s. b. What is the mass of the black hole? Give your answer as a multiple of Ms, where Ms is the solar mass, Ms=2.0×1030kg 2. A projectile is shot straight up from the earth's surface at a speed of 1.10×104 km/hr. How high does it go?
a. Calculate the acceleration due to gravity on the surface on the Moon if ithas a radius of 1 737 km and a mass of 7.35 x 10 22 kg. b. Would you feel lighter or heavier on the surface of the Moon? Explain. c. Calculate the weight of a 75.6 kg astronaut on the surface of Mars at the equator.See p. 273 of your textbook for Mars’ mass and equatorial radius. d. Explain how both a falling apple and the Moon are accelerating.