Two wires made of the same material are stretched by equal force. The second wire is twice as long as the first one and also has twice the diameter of the first wire. If the first wire is stretched by 8cm, then by how long is the second wire stretched? Answer in units cm

|| communications satellites are placed in circular orbits where they stay directly over a fixed point on the equator as the earth rotates. these are called geosynchronous orbits. the altitude of a geosynchronous orbit is 3.58 * 107 m (22,000 miles). a. what is the period of a satellite in a geosynchronous orbit