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External
breathing in through your nose is internal, breathing out through your mouth is external.
Pressure is the external force acting over a unit surface area of a material. Stress is an internal force acting over a cross sectional area within the material. It may also be thought of as the internal resistive response of a material to the applied external pressure. They both have the units of force / area. think it as- suppose we have a cubical solid mass. we apply external force of few magnitude on it and this force will try to deform the cube. at the same instant an internal force will generate within the cube that will try to maintain the shape and size of the cube i.e. this internal force will work against the applied external force. this induced force within the cube is stress.
The force that gets the electrons moving in an organ is an external force. The energy is provided by an electrical current that is generated from an external source such as an electrical outlet or a battery. This energy is then converted into mechanical energy in the form of motion which causes the electrons to move.
It can be either.
External
breathing in through your nose is internal, breathing out through your mouth is external.
external force and internal force
An internal force is a force acted upon by an object to force another object's movement internally. An external force is a force exerted on an object based on the objects position and force applied on the object which causes the opposite forces change in motion.
Border guards are the element of a security force include the mission of protecting against internal and external threats.
buthole
A force internal to the system under consideration. Whether a force is regarded as internal or external depends on how the system is defined and classified, and is largely a matter of convenience. In biomechanics, the human body is generally regarded as the system and any force exerted by one part of the body on another is an internal force. Muscle contractions produce internal forces, which move a joint. Compare http://www.answers.com/topic/external-force.
internal external not internal external not
it is niether because an external is a conflict with others and an internal is a conflict with yourself.
its internal
Pressure is the external force acting over a unit surface area of a material. Stress is an internal force acting over a cross sectional area within the material. It may also be thought of as the internal resistive response of a material to the applied external pressure. They both have the units of force / area. think it as- suppose we have a cubical solid mass. we apply external force of few magnitude on it and this force will try to deform the cube. at the same instant an internal force will generate within the cube that will try to maintain the shape and size of the cube i.e. this internal force will work against the applied external force. this induced force within the cube is stress.
it was to withstand the load of when people come and visit it