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Neurath's boat (or Neurath's ship) is a simile used in anti-foundational accounts of knowledge, especially in the philosophy of science. It was first formulated by Otto Neurath . It is based in part on the Ship of Theseus which, however, is standardly used to illustrate other philosophical questions, to do with problems of identity . [ 1 ]
A rocket's required mass ratio as a function of effective exhaust velocity ratio. The classical rocket equation, or ideal rocket equation is a mathematical equation that describes the motion of vehicles that follow the basic principle of a rocket: a device that can apply acceleration to itself using thrust by expelling part of its mass with high velocity and can thereby move due to the ...
As of September 2014, face to face workshops are dedicated solely to AP Physics 1 & AP Physics 2. The full course was first taught in 2014, with the exam given in 2015. The College Board released a "Curriculum Framework" which includes the 7 principles on which AP Physics 2 would be based on as well as smaller "Enduring Understanding" concepts.
Such boats should be able to achieve 15 knots (17 mph; 28 km/h), and to be hoisted on the US Navy's standard davits. [5] The general lines of the boat were accepted by the USMC, and in September 1940 Andrew J. Higgins , president of the Eureka Tug-Boat Company, was contracted to build a slightly larger craft to carry 24 fully equipped troops ...
Physics is the scientific study of matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. [1] Physics is one of the most fundamental scientific disciplines. [2] [3] [4] A scientist who specializes in the field of physics is called a physicist.
Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces. [1] Archimedes' principle is a law of physics fundamental to fluid mechanics. It was formulated by Archimedes of Syracuse. [2]
If the length of waterline is given in metres and desired hull speed in knots, the coefficient is 2.43 kn·m −½. The constant may be given as 1.34 to 1.51 knot·ft −½ in imperial units (depending on the source), or 4.50 to 5.07 km·h −1 ·m −½ in metric units, or 1.25 to 1.41 m·s −1 ·m −½ in SI units.
The problem consists of a 3 × 3 square created by 9 black dots. The task is to connect all 9 dots using exactly 4 straight lines, without retracing or removing one's pen from the paper. Kershaw & Ohlsson [29] report that in a laboratory setting with a time limit of 2 or 3 minutes, the expected solution rate is 0%.