A basin surrounding a drain has the shape of a circular cone opening upward, haying everywhere an angle of29.5 with the horizontal. A 19.0-g ice cube is set sliding around the cone without friction in a horizontal circle of radius R. {a} Find the speed the' Ice cube must have as a function ofR. )Is any piece of data unnecessary for the solution? {c} Supposev R is made two times larger. Will the required speed increase decrease or stay constant? If it changes, by what factor? [If it does not change, enter CONSTANT} H [d] Iwill the time required for each revolution increase, decrease, or stayr constant? If it changes, by what factor? [If it does not change, enter CONSTANT} l