It’s possible, but you really CANNOT transfer until after your first year AT THE VERY EARLIEST. If you accept Cornell’s offer, you are committing to studying in the College of A&S. There is no core A&S curriculum and the classes that freshmen Engineers take are mostly A&S classes anyway (!! math, phys, chem, cs, etc). You must do very well in those to be considered for transfer into Eng after your first year. Again, Engineering will not consider you for transfer until after they see how you do in your classes. Good luck.