There is also a focus on economic, commercial, and people-to-people ties. There are an estimated four million U.S. citizens of Philippine ancestry in the United States, and more than 220,000 U.S. citizens in the Philippines, including a large presence of United States veterans. An estimated 650,000 U.S. citizens visit the Philippines each year. Many people-to-people programs exist between the United States and the Philippines, including Fulbright, International Visitor Leadership Program, and the Kenney-Lugar Youth Exchange and Study program.
The rate or spring constant of a spring is the change in the force it exerts, divided by the change in deflection of the spring. That is, it is the gradient of the force versus deflection curve.
A constant, or mathematical constant is a well and unambiguously defined number or other mathematical object, as, for example, the numbers 0, 1, Ï and the identity element of a group. Here are other specific names for variables. 1  A unknown is a variable in which an equation has to be solved for.