2. A new Earth-like planet is found orbiting a distant star with a circular orbit. The...
points A newly discovered planet is in a circular orbit around a distant star with an orbital period of 400 Earth days. The planet also rotates on its axis, making one full rotation every 4.00 Earth days. The radius of the planet is rp = 7.00 × 106 m and the radius of the planet's orbit about the star is r 7.00×1011 m. My Notes Ask Your Tea Determine the ratio of the radial acceleration, due to the rotation of...
Please help! A planet is orbiting a nearby star in a circular, face-on (no inclination) orbit. The planet's distance from the star is 15 AU, and the star is 202 light years from Earth. b) What size telescope would be required in order to resolve the star from the planet, assuming we could work "at the diffraction limit" at a wavelength of 7 μm? Answer in metres
A planet of mass m=2.95×1024 kg is orbiting in a circular path a star of mass M=1.75×1029 kg . The radius of the orbit is R=6.25×107 km . What is the orbital period (in Earth days) of the planet Tplanet ?
A planet of mass m = 6.25 × 1024 kg is orbiting in a circular path a star of mass M = 7.85 × 1029 kg. The radius of the orbit is R = 5.65 × 107 km. What is the orbital period (in Earth days) of the planet Tplanet?
A planet of mass m = 7.85 × 1024 kg is orbiting in a circular path a star of mass M = 3.85 × 1029 kg. The radius of the orbit is R = 8.35 × 107 km. What is the orbital period (in Earth days) of the planet Tplanet?
A planet of mass m=8.55×1024 kgm=8.55×1024 kg is orbiting in a circular path a star of mass M=9.35×1029 kgM=9.35×1029 kg . The radius of the orbit is R=3.75×107 kmR=3.75×107 km . What is the orbital period (in Earth days) of the planet TplanetTplanet ?
Astronomers discover an exoplanet, a planet orbiting a star other than the Sun, that has an orbital period of 4.01 Earth years in a circular orbit around its star, which has a measured mass of 3.97X10^30. Find the radius of the exoplanet's orbit.
5. In September 2018, my research group found a planet orbiting the star 40 Eridani, which, in the series Star Trek, was identified as the system the character "Spock" was from (ee, for example, www.startrek.com/article/vulcan-like-planet-found-for-real). We measured this planet's mass to be about 8.5 times larger than that of the Earth. Assuming "Vulcan" has the same density as Earth (5.51g/cm3), what is its radius (a) in kilometers, (b) in miles, and (c) as a multiple of Earth's radius. 6. Fermi...
A planet of mass m = 1.55 x 1024 kg is orbiting in a circular path a star of mass M = 9.75 x 1029 kg. The radius of the orbit is R = 4.65 x 107 km. What is the orbital period (in earth days) of the planet? Where G = 6.67 � 10-11 N�m2/kg2 and 1 day = 8.54 � 104 s. I used the formula and got T = 247 s = 0.0289 days, but the online...
There is a moon orbiting an Earth-like planet. The mass of the moon is 5.37 × 1022 kg, the center-to-center separation of the planet and the moon is 5.34 × 105 km, the orbital period of the moon is 21.6 days, and the radius of the moon is 1060 km. What is the angular momentum of the moon about the planet? Answer in units of kg m2 /s.