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Answer #1:
9.8 m/s2
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Answer #2:
The apparent variation in gravity at different places on Earth is the result of a
combination of two causes. One of them is real ... Earth's greater radius to the
poles than to the equator. The other one ... the so-called 'centrifugal force' due
to the Earth's rotation ... doesn't change gravity, but appears to create a force
that acts in a direction different from gravity and thus partially counteracts it.
I won't go into a lot of detail on the subject of centrifugal force here, except
to just mention that no such force exists and I really hate it when people talk
about it as if it does.
I tried to find a source on the internet that differentiates between these two
causes, so that I could give you the real, actual difference in gravity between
the equator and the poles. But my exhaustive 5-minute search produced only
a source that lists the total apparent gravity as a function of latitude, which
includes both effects. So I guess I can strictly answer your question, because
the apparent gravity at the poles is not affected by any so-called 'centrifugal'
component, but the figure I have for apparent gravity at the equator does
include the full effect of that hideously popular nonexistent force.
The value of acceleration due to gravity at Earth's poles is 9.832 m/s2 .
The apparent value of acceleration due to gravity at Earth's equator is 9.780 m/s2 .
The difference is about 1/2 of 1 percent ... the difference between 199 pounds and 200 pounds
when the same mass is weighed in both locations.
What else can I help you with?
What is the value of acceleration due to gravity g in Dublin Ireland?
The acceleration of gravity (9.80 meters per second squared) does vary a bit with latitude because of the effects of centripetal acceleration as well as differences in the Earth's polar and equatorial diameters.1 But the variance isn't noticeable until the third significant figure. The acceleration due to gravity will be somewhat less in Dublin than at the equator because Dublin's latitude is 53 degrees, 20 minutes North Latitude, closer to the pole than the equator. To calculate a more precise value (more precise than just 9.80 m/s2) would require you to know the radius of the Earth at your location, since g = GMe/Re, where G is the universal gravitation constant, Me is the mass of the Earth, and Re is the radius of the Earth. From that you would substract the centripetal acceleration, which can also be calculated based upon your latitude. (Which is an answer to another question that hasn't been asked yet!) _________ 1. The Earth is not a perfect sphere. The equatorial diameter is greater than the polar diameter. Hence, g will be slightly greater at the poles than at the equator. And because the Earth rotates, the acceleration of gravity will be reduced by the centripetal acceleration, which is greatest at the equator. So, if oyu want to lose weight, move from Dublin to Ecuador.
What is the magic number for acceleration due to gravity?
It varies depending on your latitude with the equator having a slightly higher acc. due to gravity than the north/south pole . 9.8 m/s^2 is the average for the earth
Why is the value of acceleration due to gravity at the poles is greater than at the equator?
I think there are two reasons:Gravitational attraction between two masses is inversely proportional to the square of the distance between their centers of mass, and since the earth is not quite a sphere, you're closer to the center of the earth when you're at one of the poles than you are at the equator.The earth is rotating at one degree every four minutes, which means that everything on the equator is circling the earth at a linear speed of about 1040 miles per hour. The resulting inertia, which would fling everything into space like an object on a spinning turntable if not for gravity, gets subtracted from gravity.
How would the weight of an object change if it is initially weighed in Delhi to poles and them takens to the pole?
The weight of an object would not change when moving from Delhi to the North Pole. Weight is a measure of the force of gravity acting on an object, and since gravity is relatively constant on Earth's surface, the weight of an object remains the same. The only factor that can affect weight is altitude, but the difference in altitude between Delhi and the North Pole is negligible in terms of gravity's impact.
Is the North Pole actually the South Pole?
No, the North Pole and South Pole are not the same. The North Pole is located at the top of the Earth, while the South Pole is at the bottom. They are opposite ends of the Earth's axis.
What is the value of acceleration due to gravity g in Dublin Ireland?
The acceleration of gravity (9.80 meters per second squared) does vary a bit with latitude because of the effects of centripetal acceleration as well as differences in the Earth's polar and equatorial diameters.1 But the variance isn't noticeable until the third significant figure. The acceleration due to gravity will be somewhat less in Dublin than at the equator because Dublin's latitude is 53 degrees, 20 minutes North Latitude, closer to the pole than the equator. To calculate a more precise value (more precise than just 9.80 m/s2) would require you to know the radius of the Earth at your location, since g = GMe/Re, where G is the universal gravitation constant, Me is the mass of the Earth, and Re is the radius of the Earth. From that you would substract the centripetal acceleration, which can also be calculated based upon your latitude. (Which is an answer to another question that hasn't been asked yet!) _________ 1. The Earth is not a perfect sphere. The equatorial diameter is greater than the polar diameter. Hence, g will be slightly greater at the poles than at the equator. And because the Earth rotates, the acceleration of gravity will be reduced by the centripetal acceleration, which is greatest at the equator. So, if oyu want to lose weight, move from Dublin to Ecuador.
What is the value of g when Equator moves towards pole?
The value of acceleration due to gravity (g) decreases as you move from the Equator towards the poles due to the centrifugal force caused by the Earth's rotation. At the Equator, this force counteracts some of the gravitational force, resulting in a lower g value compared to the poles.
What is the magic number for acceleration due to gravity?
It varies depending on your latitude with the equator having a slightly higher acc. due to gravity than the north/south pole . 9.8 m/s^2 is the average for the earth
Is value of g is greater at the poles or at equator?
The expression for acceleration due to gravity isge=GMe/r2Acceleration due to gravity is inversely proportional to the square of the distance between the center of the Earth and the object. The acceleration due to gravity produced in an object on the surface of the Earth is dependent on the radius of the Earth. Earth is not a perfect sphere (slightly bulging out at the equator) its radius decreases as we move from the equator to the poles. At the equator and at sea level its value is about 9.78 m/s2 and at the poles it is 9.83 m/s2. Its mean value is taken as 9.8 m/s2 for all calculations.
How does the earth spin around?
Earth spins around its axis(or imaginary line from the north pole to the south pole) by gravity from earth itself and the surrounding planets.
If you dig a hole in the south pole are you digging up or down?
When you dig a hole at the South Pole, you are technically digging "up" because you are moving away from the center of the Earth. Gravity still pulls you towards the Earth's core, so you are digging upwards towards the surface of the Earth.
Is earth's north magnetic pole aligned with its north goegraphic pole?
It is an unusual question, but yes, the North and South poles do contribute to Earth's gravity. They are like giant magnets pulling things to Earth. I hope this answers your question. If not ask a real scientist.
How do the earth and the moon orbit the sun?
the earth travels around the sun in a roughly circular path because the sun's gravity is pulling on the earth. The earth does not fall in to the sun, because it is moving very fast, which gives it centripetal momentum. Its kind of like a tether ball spinning around the pole. The rope represents the suns gravity pulling on the earth. When you hit the ball it goes around the pole in a circular path. The moon circles the earth in the same way
How do the earth and moon orbit the sun?
the earth travels around the sun in a roughly circular path because the sun's gravity is pulling on the earth. The earth does not fall in to the sun, because it is moving very fast, which gives it centripetal momentum. Its kind of like a tether ball spinning around the pole. The rope represents the suns gravity pulling on the earth. When you hit the ball it goes around the pole in a circular path. The moon circles the earth in the same way
Why is the value of acceleration due to gravity at the poles is greater than at the equator?
I think there are two reasons:Gravitational attraction between two masses is inversely proportional to the square of the distance between their centers of mass, and since the earth is not quite a sphere, you're closer to the center of the earth when you're at one of the poles than you are at the equator.The earth is rotating at one degree every four minutes, which means that everything on the equator is circling the earth at a linear speed of about 1040 miles per hour. The resulting inertia, which would fling everything into space like an object on a spinning turntable if not for gravity, gets subtracted from gravity.
Why would weigh less on the moon than you do on earth?
The gravitational pole is much weaker on the moon. Weight is the amount of gravity that pulls on an object.
When an object is moved from South Pole to North Pole through a tunnel inside the earth what will the value of G do?
Because G is a constant, it will stay the same regardless of position.
