Secor is a village in Woodford County, Illinois, United States. The population was 379 at the 2000 census. It is part of the Peoria, Illinois Metropolitan Statistical Area. Secor is located just off U.S. Route 24 between El Paso and Eureka. Secor was named by Charles A. Secor, one of the builders of the Peoria and Oquawka Railroad. Secor is located at 40Â°44â²28â³N 89Â°8â²9â³W / 40.74111Â°N 89.13583Â°W / 40.74111; -89.13583 (40.741074, -89.135875).
The Effects of Friction. The energy isn't really lost. Some of the. pendulum's original potential energy has. turned into thermal (heat) energy. When you rub your hands together vigorously, you feel the heat building up. You are. converting kinetic energy into heat energy. Blame it on the force of friction!
Isometric contractions occur when there is no change in the length of the contracting muscle. This occurs when carrying an object in front of you as the weight of the object is pulling your arms down but your muscles are contracting to hold the object at the same level.here is no movement in the joints of the hand, but the muscles are contracting to provide a force sufficient enough to keep a steady hold on the racket. The amount of force a muscle is able to produce during an isometric contraction depends on the length of the muscle at the point of contraction.