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**Earth's distance from the Sun varies from 1.47 multiplied by 1011 m at perihelion to 1.52 multiplied by 1011 m at aphelion because its orbit is not quite circular. Find the change in potential energy as Earth goes from perihelion to aphelion.**

**2. Homework Equations**

ΔU=GMm ((1/r1)-(1/r2))

**3. The Attempt at a Solution**

i don't have any idea of what the value of m is