Multiple choice.
how does the gravitational force between the earth and the space shuttle on the ground compare with the gravitational force between the earth and the space shuttle in orbit?

a. the force is greater when the shuttle is on the ground
b. the force is greater when the shuttle is in orbit
c. the force is always the same
d. there is no gravitational force in space

Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?