Gravitational constant = G
Mass of the star = M
Mass of planet A = MA
Mass of planet B = MB = 4MA
Radius of orbit of planet A = RA
Radius of orbit of planet B = RB = 4RA
Time period of planet A = TA
Time period of planet B = TB
Time period of revolution around a star is given by,
Two very small planets are orbiting a much larger star. Planet A orbits the star with...
Two very small planets are orbiting a much larger star. Planet A orbits the star with a period T. Planet B circles the star at four times the distance of Planet A, but Planet B is four times as massive as Planet A. Planet B orbits the star with a period of A) T/4 B) 8T C) 4T D) T E) 16T
Orbits of four different planets around the same star are shown. The masses of the planets, expressed in terms of the mass M of the smallest planet, can be found in the included table, while the relative sizes of the orbits can be determined from the diagram. Assume that the mass of the star is much larger than the mass of the planets. Rank the period T of the four orbits, from longest to shortest. Orbits of four different planets...
Two planets are orbiting around the same star. Planet A has four times the mass of planet B. Planet A is located twice further from the star than planet B. When comparing the force of gravity affecting both planets, what is the value of the following ratio: FG on A FG on B O A) 4 B) 2 C) 1 D) 1/2 O E) 1/4
Two planets orbit in circular orbits around a star have speeds of 5v(planet A) and 2v(planet B). Express your answers in fractional form, simplified as much as possible. What is the ratio of the orbital radii of the planets? rB/rA = ___/___ What is the ratio of their periods? PB/PA = ___/____
In recent years, scientists have discovered hundreds of planets orbiting other stars. Some of these planets are in orbits that are similar to that of earth, which orbits the sun (Msun = 1.99 × 1030 kg) at a distance of 1.50 × 1011 m, called 1 astronomical unit (1 au). Others have extreme orbits that are much different from anything in our solar system. The following problem relates to one of these planets that follows circular orbit around its star....
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the planets are determined to be 45.2 km/s and 55.1 km/s. The slower planet's orbital period is 6.27 years. (a) What is the mass of the star? (b) What is the orbital period of the faster planet, in years?
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the planets are determined to be 42.6 km/s and 64.2 km/s. The slower planet's orbital period is 6.93 years. (a) What is the mass of the star? (b) What is the orbital period of the faster planet, in years?
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the planets are determined to be 43.4 km/s and 57.2 km/s. The slower planet's orbital period is 7.50 years. (a) What is the mass of the star? ______ kg (b) What is the orbital period of the faster planet, in years? _______yr
Question Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the planets are determined to be 42.1 km/s and 59.1 km/s. The slower planet's orbital period is 7.50 years. (a) What is the mass of the star? (b) What is the orbital period of the faster planet, in years?
Question 1 3 pts Planet A and Planet B orbit a star in circular orbits. The orbital radius (distance from the star) of Planet B is twice the orbital radius of Planet A, and Planet B is eight times as massive as Planet A. How does the escape velocity of Planet B compare to that of Planet B? Find vB.esc/VAesc 2.0 sqrt(2.0) 3.2 0.25 0.063 0.50 0.33 4.0 Not enough information to know