### What is the mass of each sphere

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Q1. The wind exerts a force of 325N north on a sailboat, while the water exerts a force of 425 N west on the sailboat. Find out the magnitude and direction of the net force on sailboat?

Q2. If the gravitational force between two metal spheres of equal mass is 3.45 x 10^-8 N when the spheres are 8.5m apart, what is the mass of each sphere?

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