Imagine another solar system, with a star of the same mass as the Sun. Suppose there is a planet in that solar system with a mass of 2MEarth orbiting at a distance of 1 AU from the star
What (approximately) is the orbital period of this planet? Explain your answer.
The orbital period of the planet would be approximately the same as that of the earth (1 year). Kepler's law considers only the sum of the object masses. In comparison with the mass of the star, the mass of the planet can be neglected. Thus, even though the planet is twice as massive as Earth, its orbit will be nearly the same as that of Earth.
You might also like to view...
Why do the patterns of the stars in our sky look the same from year to year?
A) because the stars in the constellations move so slowly-typically about the speed of a snail-that their motions are not noticeable B) because the stars in the constellations are so far away C) because the stars in the constellations are not moving D) because the stars in the constellations all move at the same speeds and in the same directions, so they don't change their relative positions
A soap bubble, when illuminated at normal incidence with light of 463 nm, appears to be especially reflective. If the index of refraction of the film is 1.35, what is the minimum thickness the soap film can be if it is surrounded by air?
What will be an ideal response?
The look-back time is numerically equal to the distance to a galaxy in light-years
a. True b. False Indicate whether the statement is true or false
How much current is drawn by a 1500 W appliance operating at 120V?
a. 2 b. 8 c. 12 d. 15 e. 24 amps