Question 7 A planet has a radius which is double that of the Earth's radius and a mass which is twice that of the Earth. What is the approximate gravitational field strength on the surface of the planet? A B C OD 5 N kg-¹ 1 1 2.5 N kg-¹ 10 N kg-¹ 20 N kg-¹ 1
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- C) ESA wants to send a satellite to Jupiter to investigate its internal structure and origin by measuring the atmospheric composition and temperature. The spacecraft will leave Earth from a parking orbit of radius 6578 km and arrive at Jupiter in a parking orbit of radius 75782 km. What is the total velocity change required to do this mission? How long would it take for the satellite to arrive at Jupiter?what are the magnitude and direction of the gravitational force exerted on Moe by 11.lf Moe exerts a gravitational force of 3.65 x 10-8 N on Larry, who is standing east of him, 10.If an object on the earth experiences a gravitational force of 25 N toward the center of the earth, what are the magnitude and direction of the force the object exerts on the earth? Larry? If each man has a mass of 70.0 kg, how far apart are they standing? If Curly were to bump into Moe, knocking him halfway to Larry, how would the new gravitational force between Moe and Larry compare to the original? a. ¼ as great b. ½ as great c. the same d. twice as great e. four times as greatPlanet Kling has half the radius and 2 times the mass of the Earth. What is the best estimate for the magnitude of the gravitational field at the surface of Planet Kling?
- A uniform distribution of dust in the solar system adds to the gravitational attraction of the Sun on a planet an additional forceF = −m C rwhere m is the mass of the planet, C is a constant proportional to the gravitational constant and the density of the dust, and r is the radius vector from the Sun to the planet (both considered as points). This additional force is very small compared to the direct Sun-planet gravitational force.Calculate the period for a circular orbit of radius r0 of the planet in thiscombined field.4. There are several moons orbiting Jupiter. One of the moons, Ganymede, has a mass of kg. The radius of its orbit around Jupiter is 1,070,000 km. (The mass of Jupiter is 1.90 x a) Draw a force diagram for Ganymede as it orbits Jupiter. b) What is the velocity of Ganymede as it orbits Jupiter? c) What is the period of Ganymede's orbit around Jupiter? ans. b) 10883 m/sWhat is the gravitational field intensity at a distance of 8.4 x 107 m from the centre of Earth?
- Question 95. The planet Theta has 3 times the gravitational field strength and 4 times the mass of the Earth. How does the radius of Theta compare with the radius of Earth? a. rTheta = TEarth 2 b. rrheta = Earth C. Theta = -r. Earth 3 d. TTheta = V VZrE EarthQ17 What is the magnitude of the gravitational force acting on a 3.50 x 10³ kg satellite orbiting a planet when the satellite's orbital radius is 9.17 x 106 m and the satellite's orbital period is 1.5 hours? (A) 4.34 x 104 N (B) 5.63 x 10"N (C) 4.07 N (D) 1.24 x 104 N