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.. G- UlliVersal gravitátional constantQ11. Findthe value o Guniversai gravitational constant.

Answer»

Thegravitational constant(also known as the "universal gravitational constant", the "Newtonian constant of gravitation", or the "Cavendish gravitational constant"[1]), denoted by the letterG, is anempiricalphysical constantinvolved in the calculation ofgravitationaleffects inSir Isaac Newton'slaw of universal gravitationand inAlbert Einstein'sgeneral theory of relativity.

In Newton's law, it is the proportionality constant connecting thegravitational forcebetween two bodies with the product of theirmassesand theinverse squareof theirdistance. In theEinstein field equations, it quantifies the relation betweenspacetime topologyandenergy–momentum.

The measured value of the constant is known with some certainty to four significant digits. InSI unitsits value is approximately6.674×10^−11N·kg–2·m2.



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