It makes sense because it allows us to compare other accelerations to the familiar experience of weight. Pilots in high performance jets experience very high centripetal forces in tight turns. It is common to express these forces as "g-forces", and they can run up to 7 to 8 times their weight. They wear special suits to keep the blood from draining out of their heads, and still black out if they stay in such a turn for long. A force of n "Gees" corresponds to an acceleration of a = n*g.MattsVai said:But my question is asking to calculate centripetal acceleration (Ac = 4PI^2rf^2) and to express that in terms of g. How would that make sense?
Physics is the branch of science that studies matter, energy, and the interactions between them. It seeks to understand the fundamental laws and principles that govern the natural world.
The basic concepts in physics include motion, forces, energy, and matter. These concepts are used to explain and predict the behavior of objects at different scales, from the subatomic level to the vastness of the universe.
The fundamental forces in physics are gravity, electromagnetism, strong nuclear force, and weak nuclear force. These forces are responsible for all interactions between matter and are crucial to understanding the behavior of the universe.
Classical physics refers to the theories and principles developed before the 20th century and are based on Newton's laws of motion and classical mechanics. Modern physics encompasses the theories and principles developed in the 20th century and beyond, including quantum mechanics and relativity.
Physics is closely related to other sciences, such as chemistry, biology, and astronomy. Many of the principles and laws in these fields are based on the fundamental concepts of physics. For example, understanding the behavior of atoms and molecules in chemistry relies on the principles of quantum mechanics.