seconds) and dividing this number by 63675002 (the current radius of the earth) which equals 86400.8 an increase in the length of the day by 0.8 seconds. References Bergshoeff‚ E.A. & Meijerink‚ R. (2014). Melting Icecaps. Center for Theoretical Physics. University of Groningen. Retrieved from http://www.rug400.nl/rug400_2/rug_definitief.dev/sites/default/files/Melting%20Icecaps.pdf 1. A can of diet soda floats in water‚ whereas a can of regular soda sinks. Explain this phenomenon in terms of density
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ello Doc Al and others. I am progressing along with my on-line basic physics course. I completed a new module and have some assessment questions to answer. Please review and let me know the ones that are correct. Those that are wrong just a little clue as to where my thinking process went a stray. I will add my thought process to the ones that I missed telling how I came up with the answer that I did. Thanks for taking the time to assist me on some basic questions. 1. What is the rotational speed
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wavelength and an index of refraction greater than one for frequencies below the natural frequency of the oscillators (otherwise the phase shift corresponds to a speed greater than c in the material‚ with index of refraction less than one). At a fundamental level this phase velocity‚ greater or less than c‚ is of no particular physical significance‚ because it only applies to the overly-simplified case of singlefrequency sinusoidal radiation permeating all space‚ and such radiation cannot carry a
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defined as a vibration of a system in which some particular points remain fixed while others between them vibrate with the maximum amplitude. Standing waves have different frequencies called harmonics. The lowest standing wave frequency is called the fundamental or first harmonic. For this‚ all parts of the string vibrate together‚ up and down and the ends of the string are fixed in place but are not free to move. We call these positions nodes. A node is a point on the string that does not move. The amplitude
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Hot air balloons might seem magical to some people because of its ability to float in the sky‚ but the process that allows them to take flight is actually very uncomplicated. The balloons are prime examples of the implementation of gas laws. The physics are based on the simple principle that warm air rises in cooler air. Hot air has less mass per unit of volume. The relevant gas law in use is Charless Law‚ which is V1/T1=V2/T2. The law states that raising the temperature (T1) will also increase
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conserved in this process. See Section 27–6.) 5) Running a 100-W light bulb on matter (Q52; Giancoli Chap 26) How many grams of matter would have to be totally destroyed to run a 100-W light bulb for 1 year? 6) Studying physics (Q65; Giancoli Chap 26) A farm boy studying physics believes that he can fit a 15.0-m-long pole into a 12.0-m-long barn if he runs fast enough (carrying the pole). Can he do it? Explain in detail. How does this fit with the idea that when he is running the barn looks even
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Some materials have a feature known as ferromagnetism. The prefix "ferro" refers to Iron‚ which is one such material. Ferromagnetic materials have the ability to "remember" the magnetic fields they have been subjected to. An atom consists of a number of negatively charged electrons‚ orbiting around a positively charged nucleus. These electrons also possess a quantity known as spin‚ which is roughly analogous to a spinning top. The combination of orbital and spin motions is called the angular momentum
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CBSE TEST PAPER-01 CLASS - XII PHYSICS (Unit – Electrostatics) [ANSWERS] FV force between the charges in vaccuum = FM force between two charges in medium FV ⇒ Fm = k ⇒ if k increases‚ Fm decreases. Ans 01. Since K= Ans 02. Suppose rod P be negatively charged since it attracts rod R ⇒ R is positively charged since it repels rod Q ⇒ Q is negatively charged. So force between Q and R is attractive in nature. Ans 03. Since F = q E and a = F/m Since charge on proton
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n physics‚ measure of the turning effect‚ or torque‚ produced by a force acting on a body. It is equal to the product of the force and the perpendicular distance from its line of action to the point‚ or pivot‚ about which the body will turn. The turning force around the pivot is called the moment. Its unit is the newton metre. The moment of a force can be worked out using the formula: moment = force applied × perpendicular distance from the pivot. If the magnitude of the force is F newtons and
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possible‚ but its successful confirmation would be a game changer for science. Future Endeavours The research provides important breakthroughs about high-temperature superconductivity‚ which has been a materials science curiosity and a long-standing physics mystery. So‚ it may be possible to "synthetically determine" some optimal molecular structure for high temperature superconductivity. This is serving as a strong motivation to search for newer molecular superconducting materials. This phase transition
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