A satellite is revolving róun in a circular orbit with the critical velocity 7 km/s. Find the radius of the orbit of the satellite and period of its revolutions. [G = 6.67 x 10-1" Nm?/kg²; M = 5.98 x 1024 kg] %3D
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- 9:32 O 1 o0 24 Solve the following problems. 1. Assume that Earth's orbit around the sun is circular, and that the radius of Earth's orbit is about 1.50 x 10 km. Earth completes a full revolution around the sun in 365 days. a. Calculate the tangential velocity of Earth in km/s (you have to convert days to seconds first). b. Calculate the acceleration of Earth towards the sun in m/s (you have to convert days to seconds and km to m first). 2. A certain Ferris wheel with radius 14.0 m is turning at speeds of 7.00 m/s at its farthest point. a. What is the acceleration experienced by a car attached to the rim of the Ferris wheel? b. How long does it take for the Ferris wheel to complete one full revolution? ||QUESTION 62 You could also use the Earth's orbital period around the Sun and its distance from the Sun to determine its density. O True O FalseCurrent Attempt in Progress A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.35 x 104 m/s, and the radius of the orbit is 3.47 x 106 m. A second satellite also has a circular orbit around this same planet. The orbit of this second satellite has a radius of 9.31 x 106 m. What is the orbital speed of the second satellite? Number i eTextbook and Media Save for Later Units Attempts: unlimited Submit Answer
- In a total solar eclipse, it is possible for the moon to momentarily cover the sun for an observer on the Earth's surface since: a) the angle that covers the diameter of the moon is the same that covers the diameter of the sun during the eclipse. b) the tangential acceleration of the moon and the sun is the same while the eclipse occurs. c) the length of the arcs corresponding to the diameters of the sun and the moon are equal during the eclipse. d) the angular speed of the moon and the sun is equal while the eclipse occurs.A spherical shell has the surface density p and its radius is R, The gravitational force between this shell and a small sphere of mass 0.25Kg locoted at the distance of rfrom the centre of shell is given by GTRP O GRR?/3 O GIRP O None from these answers.H. w // Prove physical equations that the Earth is spherical (Note: the answer must be equations only)
- Two uniform spheres are positioned as shown. Determine the gravitational force F which the titanium sphere exerts on the copper sphere. The value of R is 55 mm. Copper 1.9 R 3.4 R x i+ i j) (108) N R Titanium Answer: F = (i 27° --12Ex. 9: Calculate the work required to be done in moving a body of mass 100 kg from a height (2 R) to height (3 R) above the surface of the earth. (G 6.67 x 10-11 Nm2 / kg, mass of earth %3D (m) 6 x 1024 kg, radius of earth R 6400 km). %3D