Chapter 33, Problem 024 It has been proposed that a spaceship might be propelled in the...
It has been proposed that a spaceship might be propelled in the solar system by radiation pressure, using a large sail made of foil. How large must the surface area of the sail be if the radiation force is to be equal in magnitude to the Sun's gravitational attraction? Assume that the mass of the ship + sail is 1800 kg, that the sail is perfectly reflecting, and that the sail is oriented perpendicular to the Sun's rays. (With a...
It has been proposed that a spaceship might be propelled in the Solar System by radiation pressure, using a large sail made of foil. The reflectivity of foil causes the radiation force to be twice what it is normally. Calculate the area (in square kilometers) that the sail must be for the radiation force to be equal to the Sun’s gravitational attraction. Assume that the mass of the ship and sail is 1500 kg and Q=1
1. The farthest planet in the solar system has an average distance from the Sun of 5.9 x 109 km and a mass of 1.99 x 1030 kg. The period of this planet around the Sun is: 25 and 78 and 247 and 782 and 2. The gravitational attraction of a 100 kg satellite in a circular orbit around the Earth with a period of 6 hours is: 89 N 138 N 224 N 876 N
Please use the formulate sheet and show all steps to make sure
the question is worth any points
a) The initial ratio of deuterium (D) to hydrogen (H) in a planet's atmosphere was 175000; however, the present ratio is 1/1500 and the initial and final abundances of D are 5 x 10° atoms per m3 and 9 x 106 atoms per m2, respectively. What fraction of deuterium has been lost, and what fraction of hydrogen has been lost in this...