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rosab
57 Videos
Member since Jan 9, 2011
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vertical launch with a real spring
Video of several vertical launches of a 6,13 g sphere, using a spring of elastic constant 259 N/m and total mass 42,82 g, with a initial compression of 34,5 mm. A good practical agreement with prevision for maximum height, using energy conservation (77,0 cm) is achieved.Collected in mechanics experiments Mar 27, 2012 -
segunda lei Newton para o plano inclinado
Metodologia de aplicação da segunda lei de Newton ao movimento no plano inclinado. Os resultados obtidos são interpretados.Collected in mechanics experiments Nov 15, 2011 -
What thus a balance really measures? O que mede a balança na realidade?
O que mede uma balança? Is it the mass, the intensity of the weight, the intensity of the repulsive force the object exerts on the balance, the intensity of the attraction force the earth exerts on the object or the norm of the acceleration of gravity?Collected in mechanics experiments Nov 14, 2011 -
Inclined plane
Various masses (m, 2m and 3m) are released from rest from the top of a inclined plane with various inclinations. Speeds are measured with two infra-red photo-gates at two different heights.Collected in mechanics experiments Nov 10, 2011 -
Is acceleration needed for a constant speed turn?
Acceleration, determines the way velocity is going to change. Decomposition of acceleration in normal and tangential component helps to understand the future alterations in the present motion, characterized by speed and direction of motion.Collected in mechanics experiments Nov 6, 2011 -
linear momentum principle in the inclined plane.wmv
In this video, the linear momentum variation principle is applied to a constant mass in the inclined plane. The restrictions imposed by this principle are calculated using the decomposition of forces applied and the acceleration of motion.Collected in mechanics experiments Oct 31, 2011 -
decomposing forces and acceleration.wmv
To apply linear momentum principle we must first learn to choose the reference frames, identify all the forces acting, apply some trigonometry for angle determination and for scalar components determination. An example of all the steps involved is given for the inclined plane.Collected in mechanics experiments Oct 30, 2011 -
inclined plane _ macking of.wmv
How to reproduce the inclined plane experience (INCLINED PLANE.WMV), step by step. Material needed AND configurations.Collected in mechanics experiments Oct 30, 2011 -
inclined plane.wmv
Various masses (m, 2m and 3m) are released from rest from the top of a inclined plane with various inclinations. Speeds are measured with two infrared photogates at two diferent weights.Collected in mechanics experiments Oct 29, 2011 -
Scientific Notation
How to convert scientific notation to a decimal.Collected in mechanics experiments May 9, 2011 -
Feynman 'Fun to Imagine' 4: Magnets (and 'Why?' questions...)
Physicist Richard Feynman explains to a non-scientist just how difficult it is to answer certain questions in lay terms! A classic example of Feynman's clarity of thought, powers of explanation and intellectual honesty - and his refusal to 'cheat' with misleading analogies...Collected in mechanics experiments Mar 28, 2011 -
Social Media in Plain English
http://commoncraft.com A simple story that illustrates the forces shaping social media. This video comes in an unbranded "presentation quality" version that can be licensed for use in the workplace.Collected in mechanics experiments Mar 23, 2011 -
Video: RSS in Plain English
http://commoncraft.com A short explanation of RSS and how it helps you save time reading the web. This video comes in an unbranded "presentation quality" version that can be licensed for use in the workplace.Collected in mechanics experiments Mar 23, 2011 -
Terry Anderson's closing keynote at ALT-C 2009
Keynote speech by Terry Anderson, Professor and Canada Research Chair in Distance Education at Athabasca University, Canadas Open University, at In dreams begins responsibility choice, evidence and change, the 2009 conference of the Association for Learning Technology (ALT). Session given in Manchester, UK on Thursday 10 September at 11.55.Collected in mechanics experiments Mar 21, 2011 -
Intro to the Semantic Web
A short introduction to the semantic web. All source material is on the Digital Bazaar wiki: http://wiki.digitalbazaar.com/en/semantic-web-introCollected in externos Jan 9, 2011 -
M.I.T.-Walter Lewin- Complete Breakdown of Intuition - Part1
http://ocw.mit.edu/OcwWeb/Physics/8-02Electricity-and-MagnetismSpring2002/VideoLectures/ Lecture #16Collected in externos Jan 9, 2011 -
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rosab Video of several vertical launches of a 6,13 g sphere, using a spring of elastic constant 259 N/m and total mass 42,82 g, with a initial compression of 34,5 mm. A good practical agreement with prevision for maximum height, using energy conservation (77,0 cm) is achieved.
Mar 27, 2012