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Three identical very dense masses of 7400 kg each are placed on the x axis. One...

Three identical very dense masses of 7400 kg each are placed on the x axis. One mass is at x1 = -120 cm , one is at the origin, and one is at x2 = 450 cm .

a.) What is the magnitude of the net gravitational force Fgrav on the mass at the origin due to the other two masses?

Take the gravitational constant to be G = 6.67×10−11 N⋅m2/kg2 .

b.) What is the direction of the net gravitational force on the mass at the origin due to the other two masses? (+x or -x)

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