1. The problem statement, all variables and given/known data How much energy is required to move this satellite to a circular orbit with a radius of 2.50×104 miles? I've found the answer to Part A of this problem to be 1.59*10^10, if this helps solve the above^^ (Find the kinetic energy of a 1.80×103 kg satellite in a circular orbit about the Earth, given that the radius of the orbit is 1.40×104 miles.) 2. Relevant equations v^2=G Me / r KE = 1/2mv^2 .5*m*v^2=.5*m*(G*mEarth/R) E = 1/2mv^2 - GMm/r KE = 1/2mv^2 = 1/2 GMm/r E = -1/2 GMm/r dE = E2 - E1 = GMm*(-1/r2 +1/r) = GMm*(r2 -r)/(r*r2) 3. The attempt at a solution using these formulas have given me three wrong attempts on my homework and i don't know what i'm doing wrong. any help would be very appreciative.