The power P required to propel a ship varies directly as the cube of the speed s of the ship. If 5800 hp will propel a ship at 13.0 mich, what power is required to propel it at 18.0 mi/h? Set up the general variation equation P=0 (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed) The power required to propel the ship at 18.0 mi/h ishp (Round to the nearest hundred as needed.)