Three Galaxies, Each of Mass M = 4

question 6

Multiple Choice

Three galaxies, each of mass M = 4.0 × 10⁴¹ kg, lie in a plane at the corners of an equilateral triangle with sides of 5.0 × 10²² m length. The magnitude of the force the other two galaxies exert on each galaxy is

• A) 4.3 × 10²⁷ N.
• B) 6.4 × 10²⁷ N.
• C) 7.4 × 10²⁷ N.
• D) 8.6 × 10²⁷ N.
• E) 4.3 × 10²⁸ N.

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