The problem statement, all variables and given/known data 1.Assuming that only gravity is acting on it, how far does an electron have to be from a proton so that its acceleration is the same as that of a freely falling object at the earth's surface 2.Suppose the earth were made only of protons but had the same size and mass it presently has. What would be the acceleration of an electron released at the surface? 3.Is it necessary to consider the gravitational attraction as well as the electrical force? yes or no? 3. The attempt at a solution i have read through my chapter and none of the examples help me at all, I thought #1 could be zero but the online homework thing rejected that. I dont know if you could help me with the answer and also give a short explain why that would be greatly appreciated!! Thankyou!