Hi VaniA-The question is obviously from a test. If we give you all of the answers you won't learn anything. If you want to post your best effort at an answer we will be happy to offer comments and to guide you.-Rick
The "impedance" column in the table is meaningless because no units are specified.The "cross" column has entries in millimeters, a unit of length. If "cross" is intended to be "cross-sectional area", the units should be units of area.
