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is value of 'g' same at all places on the earth give reason for your answers

No , Gravity is not the same everywhere on Earth because the planet is not perfectly spherical or uniformly dense. It is weaker at the equator due to centrifugal forces produced by the planet's rotation and at higher altitudes further from Earth's centre such as at the summit of Mount Everest. [ I HOPE THIS HELPS YOU  :D ] 
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[ I HOPE THIS HELPS YOU] 
No , Gravity is not the same everywhere on Earth because the planet is not perfectly spherical or uniformly dense. It is weaker at the equator due to centrifugal forces produced by the planet's rotation and at higher altitudes further from Earth's centre such as at the summit of Mount Everest.
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Yes
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No, the value of g is different at different places on the surface of earth. The shape of the earth is not exactly spherical, it is flattened at the poles and is bulging out at the equator. Due to which the radius of the earth is smaller at poles and is larger at equator. Since g is directly proportional to 1/R2. therefore the acceleration due to gravity is smaller at equator than that at poles.
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No, the value of g is different at different places on the surface of earth. The shape of the earth is not exactly spherical, it is flattened at the poles and is bulging out at the equator. Due to which the radius of the earth is smaller at poles and is larger at equator. Since g is directly proportional to 1/R2. Therefore the acceleration due to gravity is smaller at equator than that at poles.
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