A planet in an elliptical orbit around a star moves at 30 km s−1 when at perihelion (1 AU from star). What velocity will the planet have at aphelion (3 AU from star)
A planet in an elliptical orbit around a star moves at 30 km s−1 when at...
a planet in an elliptical orbit around a distant star. a periastron (the point closest approach to the star), the planet is rp=4.20 x 10^8km from the star and is moving with the speed of vp=18.5km/s. when the planet is at apastron (the point of greatest distance from the star) it is ra=9,30x10^8 km from the star. how fast is the planet moving at apastron? va=? km/s
1 points SPreCalc7112.065.MI. My Notes Ask Your Teacher The planets move around the sun in elliptical orbits with the sun at one focus. The point in the orbit at which the planet is closest to the sun is called perihelion, and the point at which it is farthest is called aphelion. These points are the vertices of the orbit. A planet's distance from the sun is 207,000,000 km at perihelion and 249,000,000 km at aphelion. Find an equation for the...
(a) An asteroid is in an elliptical orbit around a distant star. At its closest approach, the asteroid is 0.700 AU from the star and has a speed of 54.0 km/s. When the asteroid is at its farthest distance from the star of 36.0 AU, what is its speed (in km/s)? (1 AU is the average distance from the Earth to the Sun and is equal to 1.496 x 101 m. You may assume that other planets and smaller objects...
An exoplanet is in an elliptical orbit around a distant star. At its closest approach, the exoplanet is 0.530 AU from the star and has a speed of 54.0 km/s. When the exoplanet is at its farthest distance from the star of 33.0 AU, what is its speed (in km/s)? (1 AU is the average distance from the Earth to the Sun and is equal to 1.496 ✕ 1011 m. You may assume that other planets and smaller objects in...
1. Halley’s Comet moves in an elongated elliptical orbit around the Sun. Its distances from the sun at perihelion and aphelion are 8.75 × 107 km and 5.26 × 109 km, respectively. Find the orbital semi-major axis, eccentricity, and period for Halley’s Comet. 2。 A toboggan loaded with students (total weight 300 kg) slides down a snow-covered slope. The hill slopes at a constant angle 40.0 ◦ , and the toboggan is so well waxed that there is virtually no...
Pluto's orbit around the Sun is highly elliptical compared to the planets in our Solar System. It has a perihelion distance of 29.7 AU and an aphelion distance of 49.5 AU. a) What is the semi-major axis of Pluto's orbit, in AU? b) What is Pluto's orbital period, in Earth years?
The orbit of a 1.5 ✕ 1010 kg comet around the Sun is elliptical, with an aphelion distance of 33.0 AU and perihelion distance of 0.850 AU. (Note: 1 AU = one astronomical unit = the average distance from the Sun to the Earth = 1.496 ✕ 1011 m.) (a)What is its orbital eccentricity? (b)What is its period? (Enter your answer in yr.) (c)At aphelion what is the potential energy (in J) of the comet—Sun system?
A planet is discovered to orbit around a star in the galaxy Andromeda, with the same orbital diameter as the Earth around our Sun. If that star has 4 times the mass of our Sun, what will the period of revolution of that new planet be, compared to the Earth's orb o One-fourth as much o One-half as much Twice as much A. Four times much The average distance from the Earth to the Sun is defined as one "astronomical...
A planet of mass m orbits a star of mass M in an elliptical orbit with semi major axis a. The distance of closest approach to the star is a / 4 . Assuming the ratio of the plant's speed at perigee (when a planet is closest to the star) to the planet's speed at apogee (when the planet is furthest away from the star) is
A comet moves about the Sun in an elliptical orbit, with its closest approach to the Sun being about 0.620 AU and its greatest distance from the sun being 35.5 AU (1 AU = the Earth-Sun distance). If the comet's speed at closest approach is 54.0 km/s, what is its speed when it is farthest from the Sun? (The gravitational force exerted by the Sun on the comet is parallel to the moment arm, so exerts no torque. Therefore, angular...