Compute all parts of given question:
Question: The cannon on a battleship can fire a shell a maximum distance of 30.0 km.
Part A: Calculate the initial velocity of the shell.
Part B: What maximum height does it reach? (At its highest, the shell is above a substantial part of the atmosphere--but air resistance is not really negligible as assumed to make this problem easier.)
Part C: The ocean is not flat, since the earth is curved. How many meters lower will its surface be 30.0 km from the ship along a horizontal line parallel to the surface at the ship?
Please Help and show steps. I am trying to understand how to work this question. Thanks in advance!