Physics

Physics, 01.10.2019 08:00, jonlandis6

According to kepler's third law (p2 = a3), how does a planet's mass affect its orbit around the sun?

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Physics, 02.07.2019 16:00, borgesalfonso12

Which statements describe the motion of a planet according to kepler’s second law? check all that apply. a. the speed of a planet varies as it moves in its orbit. b. the speed of a planet is constant as it moves in its orbit. c. a planet travels the same distance along its orbit in equal units of time. d. a planet sweeps out an equal area in equal units of time. e. a planet’s orbit is a circle centered on the sun. f. a planet’s orbit is an ellipse with the sun at one focus.

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Physics, 04.07.2019 14:30, mgreenamb

Which statements describe the motion of a planet according to kepler’s second law? check all that apply. the speed of a planet varies as it moves in its orbit. the speed of a planet is constant as it moves in its orbit. a planet travels the same distance along its orbit in equal units of time. a planet sweeps out an equal area in equal units of time. a planet’s orbit is a circle centered on the sun. a planet’s orbit is an ellipse with the sun at one focus.

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Physics, 05.07.2019 01:10, sheldavis

If a planet in our solar system had an 11.2-day orbit, kepler’s third law would say it is about 0.1 au from the sun. proxima is less massive than the sun, so an 11.2-day planet would be closer in than 0.1 au, according to the modified version of kepler’s third law. (with less mass at the center, a 0.1-au planet wouldn’t have to travel as fast in its orbit to “outrun” the star’s gravity.) let’s figure out just how far away this planet would be from its star. this planet is not going around the sun, so we’ll need to use the extra correction factor in kepler’s third law.

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Geography, 01.08.2019 19:10, Tamiahufflululu

We are going to look at how the radial velocity method can be used to determine the mass of a planet. the observations that get made look at two things: the wobble of the star (it is measured as a change in the speed the star appears to be traveling towards or away from us) and the amount of time it takes for the pattern to repeat itself. let's consider the planet beta gemini b. the change in the speed of the star due to the planet's tug is approximately v star = 40 m/sec. knowing that the mass of the star is m star = 2 m ? and that the period of the orbit is approximately p = 2 years, we can estimate the orbital separation a . recall that kepler's third law is m star m ? ( p year ) 2 = ( a au ) 3 where m is the mass of the star, p is the period of the orbit, and a is the separation. notice the scaling. if m , p , and a are expressed in the right units then the calculation becomes much easier. what is the orbital separation between the star and the planet in astronomical units? given your answer above, let's estimate the speed of the planet in kilometers per second. this can be determined using the equation v planet = 2 ? a p ? 6 a p for a circular orbit (and this planet is nearly on a circular orbit). what is the velocity of the planet in km/sec? now we can calculate the planet's mass by using the equation m star v star = m planet v planet what is the mass of the planet in jupiter masses? a convenient conversion factor is that 1 m ? = 10 3 m jupiter

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According to kepler's third law (p2 = a3), how does a planet's mass affect its orbit around the sun?...

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