Physics | Insight Maker

Z212 from System Zoo 1 p142-148

House Heating Dynamics

Geoff McDonnell

3

Lab 4 for Physics PHY201

Simulating a spherical projectile approaching the speed of light.

PHY201 - Lab #4 - Modeling E = m c^2 (V1)

Niels Johnson-Laird

Maiel Richards Rocket Model 2015

Maiel Richards

3

Model describing a simple pendulum with exact equation (but without dampening).

Simple pendulum

Jean-Daniel NICOLET

Um corpo é lançado obliquamente no vácuo com velocidade inicial de 100 m/s, numa direção que forma com a horizontal um ângulo x, tal que sen(x) = 0,8 e cos(x) = 0,6. Adotando g = 10m/s², determine:

a) Os módulos das componentes horizontal e vertical da velocidade no instante de lançamento;

b) O instante em que o corpo atinge o ponto mais alto da trajetória;

c) A altura máxima atingida pelo corpo;

d) O alcance do lançamento.

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 Oblíquo no vácuo.

Lançamento Oblíquo no vácuo

Claudio Garcia Quirico

This system models the equation of motion of a projectile in the horizontal (x) and vertical (y) directions, with a linear drag force. The drag is quantified by a drag coefficient C, which can be set by means of a slider.

Note that the equation has been made non-dimensional by measuring time in units of v_0/g, and distance in units of v_0^2/g. In these units, the acceleration due to gravity is simply 1. Also the "seconds" in the time axis of the graphs really means the time units defined here. Also in these units the initial speed is simply 1.

The inclination has been fixed at Pi/2. A later version will let this change with a slider.

One of the displays is y vs. x, which shows the trajectory of the projectile.

Free fall with linear drag

Alfredo Louro

S-Curve + Delay for Bell Curve Showing Erlang Distribution

Generation of Bell Curve from Initial Market through Delay in Pickup of Customers

This provides the beginning of an Erlang distribution model

The Erlang distribution is a two parameter family of continuous probability distributions with support . The two parameters are:

a positive integer 'shape'
a positive real 'rate' ; sometimes the scale , the inverse of the rate is used.

Clone of S-Curve + Delay for Bell Curve by Guy Lakeman

Nilo Guimaraes

Lab 2 for Physics PHY201

Simulating a spherical projectile released with an initial velocity of 0 m/s that experiences both forces of gravity and air drag.

PHY201 - Lab #2 - Projectile with Air Drag (V1)

Niels Johnson-Laird

Um veículo parte do repouso em movimento retilíneo e acelera com aceleração escalar constante e igual a 2,0 m/s2. Pode-se dizer que sua velocidade escalar e a distância percorrida após 3,0 segundos, valem, respectivamente:

Fonte: FUVEST -2004

Clique aqui para ver uma descrição do que é Movimento Uniformemente Variado

Movimento Uniformemente Variado

Claudio Garcia Quirico

32

Z212 from System Zoo 1 p142-148

Clone of House Heating Dynamics

Igor Krejčí

Despegue de avión

Philipp von Bülow Duden

10 months ago

THE BROKEN LINK BETWEEN SUPPLY AND DEMAND CREATES TURBULENT CHAOTIC DESTRUCTION

The existing global capitalistic growth paradigm is totally flawed

Growth in supply and productivity is a summation of variables as is demand ... when the link between them is broken by catastrophic failure in a component the creation of unpredictable chaotic turbulence puts the controls ito a situation that will never return the system to its initial conditions as it is STIC system (Lorenz)

The chaotic turbulence is the result of the concept of infinite bigness this has been the destructive influence on all empires and now shown up by Feigenbaum numbers and Dunbar numbers for neural netwoirks

See Guy Lakeman Bubble Theory for more details on keeping systems within finite working containers (villages communities)

Clone of THE BROKEN LINK BETWEEN SUPPLY AND DEMAND CREATES CHAOTIC TURBULENCE (+controls)

Sugiharto

The probability density function (PDF) of the normal distribution or Bell Curve of Normal or Gaussian Distribution is the mean or expectation of the distribution (and also its median and mode).

The parameter is its standard deviation with its variance then, A random variable with a Gaussian distribution is said to be normally distributed and is called a normal deviate.

However, those who enjoy upskirts are called deviants and have a variable distribution :)

A random variable with a Gaussian distribution is said to be normally distributed and is called a normal deviate.

If mu = 0 and sigma = 1

If the Higher Education Numbers Are Increased then the group decision making ability of society would be raised above that of a middle teenager as it is now

BUT

Governments can control children by using bad parenting techniques, pandering to the pleasure principle, so they will make higher education more and more difficult as they are doing

85% of the population has a qualification level equal or below a 12th grader, 17 year old ... the chance of finding someone with any sense is low (~1 in 6) and the outcome of them being chosen by those who are uneducated in the policies they are to decide is even more rare !!!

Experience means little if you don't have enough brain to analyse it

Democracy is only as good as the ability of the voters to FULLY understand the implications of the policies on which they vote., both context and the various perspectives. National voting of unqualified voters on specific policy issues is the sign of corrupt manipulation.

Democracy: Where a group allows the decision ability of a teenager to decide on a choice of mis-representatives who are unqualified to make judgement on social policies that affect the lives of millions.

The kind of children who would vote for King Kong who can hold a girl in one hand and swat fighter jets out of teh sky off the tallest building, doesn't have a brain cell or thought to call his own but has a nice smile and offers little girls sweets.

updated 16/3/2020 from 4 years 3 months ago

Clone of Clone of The probability density function (PDF) of the normal distribution or Bell Curve Gaussian Distribution by Guy Lakeman

Quentin Saulter

Basic model for standing waves on a string with varying mass density (e.g. beads)

f1=8.1 Hz; f2=21.05 Hz

Standing waves on a beaded string

Hans Niedderer

10

Uma roda-gigante de raio 14 m gira em torno de um eixo horizontal. Um passageiro sentado em uma cadeira, move-se com velocidade linear v=7 m/s. Determine:

a) a velocidade angular do movimento.

b) gráfico XY do movimento da cadeira.

c) em quanto tempo o passageiro executa uma volta completa.

Clique aqui para ver uma descrição do que é Movimento Circular.

Movimento Circular Uniforme (ñ)

Claudio Garcia Quirico

Uma roda-gigante de raio 14 m gira em torno de um eixo horizontal. Um passageiro sentado em uma cadeira, move-se com velocidade linear v=7 m/s. Determine:

a) A velocidade angular do movimento.

b) O módulo da aceleração centrípeta do passageiro.

c) Em quanto tempo o passageiro executa uma volta completa.

Clique aqui para ver uma descrição do que é Movimento Circular.

Movimento Circular Uniforme

Claudio Garcia Quirico

How Newton's inverse square law of gravity produces the elliptical orbits of the planets

Planetary orbits

David J. Ulrich

Pêndulo Símples

Vinícius Castellani

11 months ago

Spring-Mass-Damper model (based on IACS physics)

Spring-Mass-Damper Model

Egbert Ypma

The underlying differential equation for this very minimal model is a non-dimensional version of the equation for an RC circuit, with charge measured in units of C*emf, and time measured in units of RC.

Clone of Charging a capacitor - Non-dimensional model

stefan rümenapp

Um corpo é lançado obliquamente no vácuo com velocidade inicial de 100 m/s, numa direção que forma com a horizontal um ângulo x, tal que sen(x) = 0,8 e cos(x) = 0,6. Adotando g = 10m/s², determine:

a) Os módulos das componentes horizontal e vertical da velocidade no instante de lançamento;

b) O instante em que o corpo atinge o ponto mais alto da trajetória;

c) A altura máxima atingida pelo corpo;

d) O alcance do lançamento.

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 Oblíquo no vácuo.

Lançamento Oblíquo no vácuo (ñ)

Claudio Garcia Quirico

Andy Windy

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

Simple Pendulum

Milena Lauschner Lopes

This shows the motion of a mass suspended from a spring, with damping. An accurate solution requires a small time step and RK4 as the integration algorithm. (simplified clone)

Simple harmonic oscillator

Seigo Robinson

Physics Models