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Q: What would the escape velocity be for a planet with twice the mass of Earth and twice the diameter if the Earth's escape velocity is 11 km per s?
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Does every planet have an escape velocity?

"Escape velocity" is defined as the velocity required in order to guarantee that the object will not fall back under the influence of the planet's gravitational attraction. If it's possible to escape from a planet's gravitational attraction, then an escape velocity can be defined and calculated.


Why would escape velocity be different on a different planet?

The escape velocity is determined by the gravity of the planet which in turn is determined by the mass and size of the planet


What is the escape velocity of planet Jupiter in miles per hour?

The escape velocity of planet Jupiter is: ~133,097.71 miles per hour.


What are the planet's diameters?

Mercury's diameter (at the equator) = 4880km or 0.3825 x Earths diameter Venus' diameter = 12,104km or 0.9488 x Earths Earth's diameter = 12,756km Mars' diameter = 6794km or 0.5323 x Earths Jupiter's diameter = 142,984km or 11.21 x Earths Saturn's diameter = 120,534km or 9.45 x Earths Uranus' diameter = 51,114km or 4.01 x Earths Neptune's diameter = 49,532km or 3.88 x Earths (Pluto's diameter = 2306km or 0.18 x Earths) I included Pluto on the end there, its not classed as a planet any more though, but a dwarf planet.


What does the term 'escape velocity' mean?

Escape velocity is what a moving body has to achieve in order not to be pulled back down to the planet. For Earth it is about 7 miles per second.


What is the escape velocity of mercury?

The planet Mercury's escape velocity is 4.3 kilometers per second. The escape velocity of the Earth is 11.2 kilometers per second.


To escape from a planet's an object muct reach a speed called the?

That would be its escape velocity.


Which planet is most like Earth in diameter and mass?

Venus is closest to the Earths size and mass - often referred to as Earths sister or twin planet. Venus' Mass is around 82% of Earths, while its diameter is a little smaller than Earths at around 95% of Earths.


What is the third largest planet diameter?

Uranus is third largest. Diameter = 51115km, about 8 times that of Earths diameter.


Which planet is most like earth in size and mass?

Venus is closest to the Earths size and mass - often referred to as Earths sister or twin planet. Venus' Mass is around 82% of Earths, while its diameter is a little smaller than Earths at around 95% of Earths diameter.


How are the mass of the body and escape speed related?

The greater the mass of the planet, the greater will be the escape velocity.


Which other planet in the solar system closest in size to the earth?

Venus is closest to the Earths size and mass - often referred to as Earths sister or twin planet. Venus' Mass is around 82% of Earths, while its diameter is a little smaller than Earths at around 95% of Earths diameter.