At which point S does the pendulum have the greatest potential energy?

At which point S does the pendulum have the greatest potential energy?

As it swings down, its potential energy gets converted to the kinetic energy. As a result, it have zero potential energy and maximum kinetic energy at the bottom point. Hence, the pendulum have the greatest kinetic energy at the bottom.

What does it mean to say energy is dissipated?

Dissipation is a term that is often used to describe ways in which energy is wasted. Any energy that is not transferred to useful energy stores is said to be wasted because it is lost to the surroundings. Electrical cables warming up are a good example of this.

What are examples of dissipated energy?

for a radio or set of speakers, the electrical work is transferred into useful sound and infrared radiation is dissipated – ie wasted as heat energy. for a tumble dryer, the electrical work is transferred into useful internal (thermal) energy which helps to dry clothes and energy is dissipated as sound.

What is dissipative process?

In a dissipative process, energy (internal, bulk flow kinetic, or system potential) transforms from an initial form to a final form, where the capacity of the final form to do mechanical work is less than that of the initial form. The entropy production rate times ambient temperature gives the dissipated power.

What is dissipative effect?

The dissipation effects due to dissipative forces, such as the friction force between solids or the drag force in motions in fluids, lead to an internal energy increase of the system and/or to a heat transfer to the surrounding.

How do you show a system is dissipative?

you can check the divergence of the vector field F: divF=∇⋅F=(∂∂x,∂∂y,)⋅(F1,F2)=∂F1∂x+∂F2∂y….

1. If divF=0 everywere then the flow is area-preserving,
2. if divF<0 everywere then the flow is dissipative,
3. if divF>0 everywere then the flow is expanding,
4. if divF changes the sign then the flow has no one of these three properties.

What is dissipative force?

A force that causes a loss of energy (considered as consisting of kinetic energy and potential energy). A resistive force is dissipative because the work done by it is negative.

Is friction a dissipative force?

Friction is a dissipative force. A dissipative force is one in which the total energy of a system decreases when an object is in motion.

Is viscosity a dissipative force?

Viscous friction is important for wet surfaces at small relative velocties. Viscosity is not a force, it is a measure of resistance of movement between molecules to each other. It is shear stress in the fluid essentially.

Which force is dissipative force examples?

Answer. Examples: the force of gravity and the spring force are conservative forces. For a non-conservative (or dissipative) force, the work done in going from A to B depends on the path taken. Examples: friction and air resistance.

What is an example of a non-conservative force?

Examples of non-conservative forces are friction and non-elastic material stress. Friction has the effect of transferring some of the energy from the large-scale motion of the bodies to small-scale movements in their interior, and therefore appear non-conservative on a large scale.