please do everything asked im the question

Q1. Use the top-down design approach to solve the following problem. Make sure to list the steps, then show the work for it: Newton's law of universal gravitation tells us that the force exerted by one particle on another is given by: F=Gr2m1m7, where G is the universal gravitational constant of 6.6731011, the mass of each particle is m1 and m2, respectively, and r is the distance between the two particles. Given that the force. F. exerted by the earth on the moon is 1.951020N, the mass of earth is 61024kg, and the earth and moon are at an average of 3.9108m apart, find the mass of the moon. [Note: You do not need to worry about the units, consider all units workout]. Note: You need to list each step (1,2,3,4, and 5) and then show the appropriate working under each step for step 1 through 5 . For step 3 , first find expression in terms of mass of moon, then do computation do get result. See Class Example (Lecture 04 Slides)