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What is the value of gravitational field strength on a planet with half Earth's mass and half its radius?
Wiki User
∙ 13y ago
i guess it 's 39.2n.kg
Wiki User
∙ 13y ago
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What is the formula for calculating plant density?
well one of the formulae is:Density = 3g/4G*(py)*rwhereg = gravitational accelerationG = universal gravitational constantpy = 22/7 or 3.14r = radius of the planet (half the diameter)
How do mercury radius and mass compare with the earths?
Mercurys mean radius is around 2,439.7 km, which is around 38.39% of earth radius or 0.3829 Earths. Mercurys mass is around 3.3022×10 to the 23 kg, around 5.5% of earths mass or 0.055 Earths.
What is the size of the inner planets?
Mercury's radius (at the equator) = 2440km or 0.3825 x EarthsVenus' radius = 6052km or 0.9488 x EarthsEarth's radius = 6378kmMars' radius = 3397km or 0.5323 x Earths
How is the surface gravity of the terrestrial planets related to the type of atmosphere that they have?
The acceleration of gravity at the surface of each terrestrial planet is proportional to the mass of each planet and inversely proportional to the square of the planet's radius, with Newton's gravitational proportionality constant, and is not correlated in any way with any characteristic of the planet's atmosphere. In other words: It ain't related.
How much would a 100 lb person weigh on a planet twice the mass of earth?
That would depend on the planet's radius. The strength of gravity depends on both the mass of the object in question and the distance from its center of mass. If the planet in question had the same radius as Earth, then the person would weigh 200 lbs as gravity would be twice as strong. If the planet had the same density as Earth it would have 1.26 times Earth's radius and gravity would be 1.26 times as strong and the person would weigh 126 lbs. If the planet had about 1.41 times Earth's radius then that person's would weight 100 lbs.
What does the gravitational field strength on a planet depend on?
It can be calculated on the basis of the planet's mass and its radius.
What is the Gravitational strength of the sun?
You need to use the radius and the mass :P
What happens to the gravitational field strength as you increase the radius?
it will decrease as radius increase keeping mass same
The planet Neptune's size compared to the other planets?
Mercury's radius (at the equator) = 2440km or 0.3825 x Earths Venus' radius = 6052km or 0.9488 x Earths Earth's radius = 6378km Mars' radius = 3397km or 0.5323 x Earths Jupiter's radius = 71,492km or 11.21 x Earths Saturn's radius = 60,267km or 9.45 x Earths Uranus' radius = 25,557km or 4.01 x Earths Neptune's radius = 24,766km or 3.88 x Earths
How does the gravity of the planets vary with he mass?
The gravitational field (gravitational attraction per unit mass) at any given distance is directly proportional to the planet's mass.The gravitational field at the planet's SURFACE also depends on the planet's radius.
How do you find the radius of a planet?
Use the formula to find the radius of a body from its gravitational acceleration and the gravitational constant (all bodies have gravity that is proportional to their mass). See related links for a web page that will do the calculations for you.
What is the field strength at a distance one Earth radius beyond the surface?
I assume you mean, of the gravitational field? The gravitational field is inversely proportional to the square of the distance. At a distance of 1 Earth radius, the distance from the center of the Earth is twice the distance at the Earth's surface; thus, the field strength is 1/4 what it is on the surface. If at the surface the field strength is about 9.8 meters per second square, divide that by 4 to get the field strength at a distance of one Earth radius from the surface.I assume you mean, of the gravitational field? The gravitational field is inversely proportional to the square of the distance. At a distance of 1 Earth radius, the distance from the center of the Earth is twice the distance at the Earth's surface; thus, the field strength is 1/4 what it is on the surface. If at the surface the field strength is about 9.8 meters per second square, divide that by 4 to get the field strength at a distance of one Earth radius from the surface.I assume you mean, of the gravitational field? The gravitational field is inversely proportional to the square of the distance. At a distance of 1 Earth radius, the distance from the center of the Earth is twice the distance at the Earth's surface; thus, the field strength is 1/4 what it is on the surface. If at the surface the field strength is about 9.8 meters per second square, divide that by 4 to get the field strength at a distance of one Earth radius from the surface.I assume you mean, of the gravitational field? The gravitational field is inversely proportional to the square of the distance. At a distance of 1 Earth radius, the distance from the center of the Earth is twice the distance at the Earth's surface; thus, the field strength is 1/4 what it is on the surface. If at the surface the field strength is about 9.8 meters per second square, divide that by 4 to get the field strength at a distance of one Earth radius from the surface.
What are the characteristics that cause a planet to have less gravity?
The force due to gravity of a planet is dependent on the mass of that planet (and to a lesser extent the radius/diameter). If a planet is less massive then it will have a lower gravitational force.
How does the earths radius affect the gravitational force on a object at its surface?
The Earth and the object exert a gravitational force on each other, but only the Earth's is big enough to measure. So, the formula for gravitational force include the distance from one body's surface to its center and the same for the other body. The length of the radius is directly proportional to the body's gravitational force.
What is the distance from the Earths center to a point outside the Earth where the gravitational acceleration due to the Earth is 1 26 of its value at the Earths surface?
That would have to be at a radius that is sqrt(26) = 5.1 times the Earth's physical radius, or about 32,486 kilometers (20,186 miles) from the center.
What is earths gravitational acceleration?
Standing at surface radius its = 9.82 (m/s)/sbut double the radius and the acceleration drops to 9.82 / ((2 / 1)2) = 2.455 (m/s)/s
How large is the second smallest planet?
MarsIts equatorial radius is 3,396.2 ± 0.1 km or 0.533 Earths,Its polar radius is 3,376.2 ± 0.1 km or 0.531 Earths,Its surface area is 144,798,500 km² or 0.284 Earths,Its volume is 1.6318 × 1011 km³ or 0.151 Earths,Its mass is 6.4185 × 1023 kg or 0.107 Earths.
