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1. Calculate F1, the force on the baby due to Mars. Mars has a mass M1...

1. Calculate F1, the force on the baby due to Mars. Mars has a mass M1 = 6.23x1023kg, and when it is at opposition, it is at r1 = 3.78x1011m distance.

2. Calculate F2, the force on the baby due to the doctor. A reasonable mass would be M2 = 65 kg, and the distance would be small, r2 = 1m.

3. What has a greater gravitational influence on the infant, the presence of Mars or the presence of the doctor

4. Using a scale that measures force in Newtons (N), weigh an object with a known mass.

Record both the mass (M) and the weight (F) of the object.

Calculate the mass of the Earth (Me) using the above equation.

Calculate the mass of the Earth (Me) using the above equation.

How accurate is your result? The accepted value for the mass of the Earth is Me = 5.98x1024kg. Calculate the percent error in your value.

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