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Thursday, 02 April 2026
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Two spheres of masses 100kg and 90kg respectively have their centres separated by a ...

Two spheres of masses 100kg and 90kg respectively have their centres separated by a distance of 1.0m. Calculate the magnitude of the force of attraction between them. [G = 6.70 x 10-11Nm-2kg-2]
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  • A 6.70 x 10-11N
  • B 6.70 x 10-10N
  • C 6.03 x 10-11N
  • D 6.03 x 10-7N
Correct Answer: Option D
Explanation:
F = \(\frac{Gm_1m_2}{r^2} = 6.7 \times 10^{11} \times \frac{100 \times 90}{1^2} = 6.03 \times 10^{-7}N\)

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