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Three identical masses of 580 kg each are placed on the x axis. One mass is at x = -100 cm, one is at the origin, and one is at x = 440 cm. What is the magnitude of the net gravitational force (F-grav) on the mass at the origin due to the other two masses (in N)? Take the gravitational constant G to be G = 6.67 x 10^-11

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