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9th Class Science Gravitation and Floatation Question Bank 9th CBSE Science Gravitation

  • question_answer
      What height above the surface of the earth, the value of g becomes 64% of its value cut the surface of the earth. Take the radius of the earth = 6400 km.

    Answer:

                      Let g = acceleration due to gravity at the earth surface. gh, = acceleration due to gravity at height (h) = 0.64 g                                                                                                                                            


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