Simple Pendulum
Milena Lauschner Lopes
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
- 8 months 3 weeks ago
James Linskey rocket model
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Wouter van Joolingen
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Spule_Ein_Aus
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Mats van Beek
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Wiebe Anass
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Kette rutscht über eine Kante
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Fallschirmsprung II
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Clone of Clone of BATHTUB MEAN TIME BETWEEN FAILURE (MTBF) RISK
Ivan Stamenkovic
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
- 5 years 11 months ago
Lançamento Horizontal no vácuo
Paulo Villela ★
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.
- 3 years 11 months ago
Clone of BATHTUB MEAN TIME BETWEEN FAILURE (MTBF) RISK
atif
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
- 7 years 10 months ago
Styrofoam Ball Dynamics Model
Marc
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DVA metric
Edythe ★
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Heat Flow into Surface of Earth (no atmosphere)
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Work in progress. Simulating soil temperature profile.
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