Need help with physics question. Tides are created by the gravitational attraction of the sun and moon on Earth. Calculate the net force pulling on Earth during a) a new moon, b) a full moon, c) a first quarter moon. The diagram is intended to help your understanding of the situation but is not drawn to scale. (m of the moon = 7.35 x 10^22 kg, m of the earth = 5.98 x 10^24 kg, m of the sun = 1.99 x 10^30 kg, distance from e-m = 3.84 x 10^8 m, d e-s = 1.5 x 10^11 m)
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