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Physics Forums is a question and answer Internet forum that allows users to ask, answer and comment on grade-school through graduate-level science questions. In addition, Physics Forums hosts the Insights Blog which is a collaborative blog sourced from verified experts on the community. Authors of scientific papers have used Physics Forums to ...
Round 1 — The round of fundamental questions. Each contesting school has to answer 4 Biology, 4 Chemistry, 4 Physics and 4 Mathematics questions. A wrongly answered question may be carried over as a bonus. Partial credit is sometimes awarded by the quiz mistress. Round 2 — This round is called the speed race. All three schools are presented ...
It allows users to ask, answer and comment on graduate-level physics questions, post and review manuscripts from ArXiv (which lists PhysicsOverflow discussion pages among its trackbacks [3]) and other sources, and vote on both forms of content.
This peculiar, specialized, technical, usage of the word 'cause' is not that of everyday English language. [4] Rather, the translation of Aristotle's αἰτία that is nearest to current ordinary language is "explanation." [5] [2] [4] In Physics II.3 and Metaphysics V.2, Aristotle holds that there are four kinds of answers to "why" questions ...
Many mathematical problems have been stated but not yet solved. These problems come from many areas of mathematics, such as theoretical physics, computer science, algebra, analysis, combinatorics, algebraic, differential, discrete and Euclidean geometries, graph theory, group theory, model theory, number theory, set theory, Ramsey theory, dynamical systems, and partial differential equations.
"High school physics textbooks" (PDF). Reports on high school physics. American Institute of Physics; Zitzewitz, Paul W. (2005). Physics: principles and problems. New York: Glencoe/McGraw-Hill. ISBN 978-0078458132
For HL, questions in section A (45 marks) consists of the core of the option, which may be common to the SL paper, and questions in section B (20 marks) are based on the extension of the option. Paper 3 (HL only: 30 raw marks contributing 20% of the course, 1 hour) consists of 4 compulsory questions based on the pre-seen case study annually ...
Newton's second law, in modern form, states that the time derivative of the momentum is the force: =. If the mass m {\displaystyle m} does not change with time, then the derivative acts only upon the velocity, and so the force equals the product of the mass and the time derivative of the velocity, which is the acceleration: [ 22 ] F = m d v d t ...