Pêndulo que gira sobre um eixo fixo principal e inercial z. Portanto, o momento de inercia (I=Izz) e o Icm=o, pois r=o. 
São vetores: Momento angular, r, g, P, torque.
Interessante caso de Modelagem:https://www.if.ufrgs.br/novocref/?contact-pergunta=sera-que-um-relogio-de-pendulo-funciona-da-mesma-maneira-na-terra-e-na-lua

Universidade Federal do Rio Grande do Sul Instituto de Física Heidemann, L. A.; Araujo, I. S.; Veit, E. A
http://www.if.ufrgs.br/gpef/modelagem/hipermidia/Pendulos_files/guia_pendulos.pdf

Physics Pendulum

Physics

IACS Physics Wind Resistance Kinematics Mac Rozen

Nur Zerfall

Physics Physik Schecker

A simple model of radioactive decay as a typical example of exponential decay.

Physics

IACS Physics Wind Resistance Kinematics

Ein- und Ausschaltvorgang bei einer Spule im Gleichstromkreis

Physics Physik Schecker

a) zonder: 41,092 km, met: 127,735 km. Verschil: 86,643 kmb) 52,73 gradenc) bereik is 2 km overschat, hoogte is 2 km onderschat

Physics

Physics

Just a basic example of heat flow between two reservoirs at 100 degrees and 0 degrees.

Physics

Physics

This is a simulation of a mass attached to a spring without frictional forces. It oscilates around an equilibrium position.

Physics

Fall mit Luftreibung und Öffnung des Fallschirm in 400m Höhe

Physics Physik Schecker

Physics

Simulation of MTBF with controls

F(t) = 1 - e ^ -λt Where  • F(t) is the probability of failure  • λ is the failure rate in 1/time unit (1/h, for example) • t is the observed service life (h, for example)
The inverse curve is the trust time
On the right the increase in failures brings its inverse which is loss of trust and move into suspicion and lack of confidence.
This can be seen in strategic social applications with those who put economy before providing the priorities of the basic living infrastructures for all.

This applies to policies and strategic decisions as well as physical equipment.
A) Equipment wears out through friction and preventive maintenance can increase the useful lifetime, 
B) Policies/working practices/guidelines have to be updated to reflect changes in the external environment and eventually be replaced when for instance a population rises too large (constitutional changes are required to keep pace with evolution, e.g. the concepts of the ancient Greeks, 3000 years ago, who based their thoughts on a small population cannot be applied in 2013 except where populations can be contained into productive working communities with balanced profit and loss centers to ensure sustainability)

Early LifeIf we follow the slope from the leftmost start to where it begins to flatten out this can be considered the first period. The first period is characterized by a decreasing failure rate. It is what occurs during the “early life” of a population of units. The weaker units fail leaving a population that is more rigorous.
Useful Life
The next period is the flat bottom portion of the graph. It is called the “useful life” period. Failures occur more in a random sequence during this time. It is difficult to predict which failure mode will occur, but the rate of failures is predictable. Notice the constant slope.  
Wearout
The third period begins at the point where the slope begins to increase and extends to the rightmost end of the graph. This is what happens when units become old and begin to fail at an increasing rate. It is called the “wearout” period. 

Environment Economics Finance Mathematics Physics Biology Health Fractals Chaos TURBULENCE Engineering Navier Stokes Science Demographics Population Growth BIFURCATIONS MTBF Risk Failure Strategy

Após uma enchente, um grupo de pessoas ficou ilhado numa região. Um avião de salvamento, voando horizontalmente a uma altura de 720 m e mantendo uma velocidade de v = 50m/s, aproxima-se do local para que um pacote com medicamentos e alimentos seja lançado para as pessoas isoladas. A que distância, na direção horizontal, o pacote deve ser abandonado para que caia junto às pessoas? Despreze a resistência do ar e adote um g = 10m/s².

Fonte: (RAMALHO, NICOLAU E TOLEDO;Fundamentos da Física, Volume 1, 8ª edição, pp. 12 – 169, 2003).

Clique aqui para ver uma descrição do que é Lançamento Horizontal no vácuo.

SYSTEM DYNAMIC Physics Kinematics Computational Modeling Simulation.

Simulation of MTBF with controls

F(t) = 1 - e ^ -λt Where  • F(t) is the probability of failure  • λ is the failure rate in 1/time unit (1/h, for example) • t is the observed service life (h, for example)
The inverse curve is the trust time
On the right the increase in failures brings its inverse which is loss of trust and move into suspicion and lack of confidence.
This can be seen in strategic social applications with those who put economy before providing the priorities of the basic living infrastructures for all.

This applies to policies and strategic decisions as well as physical equipment.
A) Equipment wears out through friction and preventive maintenance can increase the useful lifetime, 
B) Policies/working practices/guidelines have to be updated to reflect changes in the external environment and eventually be replaced when for instance a population rises too large (constitutional changes are required to keep pace with evolution, e.g. the concepts of the ancient Greeks, 3000 years ago, who based their thoughts on a small population cannot be applied in 2013 except where populations can be contained into productive working communities with balanced profit and loss centers to ensure sustainability)

Early LifeIf we follow the slope from the leftmost start to where it begins to flatten out this can be considered the first period. The first period is characterized by a decreasing failure rate. It is what occurs during the “early life” of a population of units. The weaker units fail leaving a population that is more rigorous.
Useful Life
The next period is the flat bottom portion of the graph. It is called the “useful life” period. Failures occur more in a random sequence during this time. It is difficult to predict which failure mode will occur, but the rate of failures is predictable. Notice the constant slope.  
Wearout
The third period begins at the point where the slope begins to increase and extends to the rightmost end of the graph. This is what happens when units become old and begin to fail at an increasing rate. It is called the “wearout” period. 

Environment Economics Finance Mathematics Physics Biology Health Fractals Chaos TURBULENCE Engineering Navier Stokes Science Demographics Population Growth BIFURCATIONS MTBF Risk Failure Strategy

Physics

Connects distance, velocity, and acceleration.

Physics

Work in progress. Simulating soil temperature profile.

Physics

How relativistic dynamics can be easily explained by simply adding a kinetic mass component due to E=mc².

Physics

Tischtennisball aus 5m Höhe mit und ohne Strömungswiderstand.

Physics

A PID control loop for a simple linear systemSome stochasticity in the throttle and sensor ​

Physics Control

Spring-Mass model used in IACS physics class

IACS Physics Kinematics Spring Periodic Motion