Lowest frequency standing wave: fundamental. The lowest standing wave frequency is called the fundamental or first harmonic. For this mode, all parts of the string vibrate together, up and down. Of course, the ends of the string are fixed in place and are not free to move. We call these positions nodes: a node is a point on the string that does not move.
You need protein for your muscles, bones, and the rest of your body. Exactly how much you need changes with age: 1  Babies need about 10 grams a day.2  School-age kids need 19-34 grams a day. 3  Teenage boys need up to 52 grams a day. 4  Teenage girls need 46 grams a day. 5  Adult men need about 56 grams a day.6  Adult women need about 46 grams a day (71 grams, if pregnant or breastfeeding).xactly how much you need changes with age: 1  Babies need about 10 grams a day. 2  School-age kids need 19-34 grams a day. 3  Teenage boys need up to 52 grams a day. 4  Teenage girls need 46 grams a day.
Teenage girls between the ages of 14 and 18 require 46 grams of protein daily, while same-age boys need 52 grams. Protein for Adults Adult women between the ages of 19 and 70+ require 46 grams of protein, the same amount needed during adolescence. Same-age adult men need 56 grams of protein, 4 grams more than they required during teenage years. Getting Enough Protein. To make sure you get the requisite grams of protein you need daily, calculate the amount found in specific servings of protein-rich foods. For example, a cup of milk contains 8 grams of protein, while a 3-oz. piece of meat contains around 21, says the CDC.