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Problem of the sliding chain

Clone of Sliding Chain

Corinne

Bomba Ariete Original

Rocio Hernandez

H2 opg 28

Fysica

Problem of the sliding chain

Clone of Sliding Chain

Anaïs Lessard

Problem of the sliding chain

Clone of Sliding Chain

Beatrice Cajvan

HORIZONTAL THROW IN VACUUM

After a flood, a group of people were left in one area. A rescue plane, flying horizontally at a height of 720 m and maintaining a speed of v = 50m / s, approaches the scene for a packet of medicines and food to be launched to isolated people. How far in the horizontal direction should the package be dropped so that it falls with people? Disregard air resistance and adopt g = 10m / s².

Source: RAMALHO, NICOLAU AND TOLEDO; Fundamentos de Física, Volume 1, 8th edition, pp. 12 - 169, 2003).

This model may be cloned and modified without prior permission of the authors. Thanks for quoting the source.

Lancamento Horizontal

Paulo Villela

Problem of the sliding chain

Clone of Sliding Chain

Héloise Perrault

Griepvirus simulatie

Fysica

Problem of the sliding chain

Clone of Sliding Chain

Ariane Beland

1. Eenparig Versnelde Beweging

Fysica

Força de arrasto linear referências:

CREF - Velocidade das gotas de chuva. 27 de abril, 2020. É verdade que as gotas de chuva sempre caem com a mesma velocidade devido a gravidade? Respondido por: Prof. Fernando Lang da Silveira - www.if.ufrgs.br/~lang/

https://www.if.ufrgs.br/novocref/?contact-pergunta=velocidade-das-gotas-de-chuva

CREF - Velocidade de pedras de granizo no solo. 22 de outubro, 2015. Respondido por: Prof. Fernando Lang da Silveira - www.if.ufrgs.br/~lang/

https://www.if.ufrgs.br/novocref/?contact-pergunta=velocidade-das-pedras-de-granizo-ao-chegarem-ao-solo

Silveira, F. (2015). Velocidade das pedras de granizo Hailstone speed. https://doi.org/10.13140/RG.2.2.33619.94245

https://www.researchgate.net/publication/339536656_Velocidade_das_pedras_de_granizo_Hailstone_speed

Aula 10 - Velocidade Terminal

https://www.cesadufs.com.br/ORBI/public/uploadCatalago/11393004052012Fisica_Basica_Aula_10.pdf

Aerodinâmica da Bola de Futebol: da Copa de 70 à Jabulani Carlos Eduardo Aguiar Programa de Pós-Graduação em Ensino de Física Instituto de Física - UFRJ

https://www.if.ufrj.br/~sandra/Topicos/palestras/futebol2.pdf

Número de Reynolds

https://betaeq.com.br/index.php/2019/08/27/reynolds/

https://www.guiadaengenharia.com/numero-reynolds-entenda/

Aula 5.2 - Origem física do arrasto linear e quadrático: o número de Reynolds. Mecânica Clássica UFF Prof. Jorge de Sá Martins

https://www.youtube.com/watch?v=_PW3GY7eZl8

Viscosidade, turbulência e tensão superficial - IF UFRJ

https://www.if.ufrj.br/~bertu/fis2/hidrodinamica/viscosidade.html

Sugestões de Modelagem (Leonardo):

Revista Brasileira de Ensino de Física, vol. 41, nº 3 (2019) É seguro atirar para cima? Uma analise da letalidade de projéteis subsônicos. Saulo Luis Lima da Silva, Herman Fialho Fumiã.

https://www.scielo.br/pdf/rbef/v41n3/1806-9126-RBEF-41-3-e20180260.pdf

FRENAGEM DE UM PROJÉTIL EM UM MEIO FLUIDO: “QUAL SERIA A DISTÂNCIA, DENTRO DA ÁGUA, PERCORRIDA POR UM PROJÉTIL CALIBRE .50 COM MASSA DE 50 G E VELOCIDADE DE 850 M/S?” Fernando Lang da Silveira Instituto de Física – UFRGS

https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2013v30n1p156/24490

Clone of Fall with drag force

Kyra Evers

IACS

Dynamics Model Styrofoam

Ashley Hilliker

Clone of Rocket Model

Erik

Problem of the sliding chain

Clone of Sliding Chain

Anaïs Lessard

Problem of the sliding chain

Clone of Sliding Chain

Corinne

Paris Gun Tegenwind 70km

Mats van Beek

Z212 from System Zoo 1 p142-148

Clone of House Heating Dynamics

Sofi Zibe

damped pendulum

Monk Simulator

Problem of the sliding chain

Clone of Sliding Chain

Anthony Gaetani

Clone of Paris Gun Tegenwind 70km

Juan Antonio Jaramillo Zapata

Problem of the sliding chain

Clone of Sliding Chain

Sara F

Masse-ressort

Mickaël Ringuet

10 months ago

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 Life

If 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.

Clone of Clone of Clone of BATHTUB MEAN TIME BETWEEN FAILURE (MTBF) RISK

Alena Peskova

Problem of the sliding chain

Clone of Sliding Chain

philippe myrand

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