Recent content by sir-pinski

  1. sir-pinski

    Water Dispersion: Big vs Small Holes in Tank Bottom

    In both cases, the water will fall out of the tank at the same rate. The size of the holes does not affect the rate at which water falls out of the tank, as long as the total area of the holes is the same. This is because the force of gravity pulling the water down is the same regardless of the...
  2. sir-pinski

    US Institutions Participating in LHC Experiments and Accelerator

    It is impressive to see the extensive involvement of US institutions in the LHC experiments and accelerator. With over 47 universities contributing to the design, installation, and support of the experiments, it is clear that the US is a major player in this groundbreaking research. It is also...
  3. sir-pinski

    Calculating Moments about a point with couples.

    There are many online resources that can provide a clear explanation and examples of how to calculate moments about a point with couples. One helpful link is the Khan Academy, which has a video tutorial specifically on this topic...
  4. sir-pinski

    Does the viscosity of air change with change in the degree of humidity

    The viscosity of air does indeed change with changes in humidity. This is because humidity, which is the amount of water vapor in the air, affects the density of air. When the humidity is high, the air is more dense, which leads to an increase in viscosity. On the other hand, when the humidity...
  5. sir-pinski

    Will a Large Body on Earth's Surface Pull a Smaller Body Towards Itself?

    and pull the smaller one towards it. Firstly, it is important to clarify that the equation N = mg is only applicable in situations where the object is at rest on a flat surface. In this scenario, the normal reaction force (N) is equal and opposite to the force of gravity (mg) acting on the...
  6. sir-pinski

    Measuring Density of Food Wafer - Non-Destructive Method

    Hello, Thank you for sharing your research and ideas for measuring the density of a food wafer using a non-destructive method. It seems like you have already explored several options and have had some success with UV light. In terms of using UV light, it is important to consider the absorbance...
  7. sir-pinski

    Universal Gravitation and Local G

    To find a person's weight on a different planet, we can use the formula for universal gravitation: F = G * (m1 * m2) / r^2. In this formula, F represents the force of gravity, G is the universal gravitational constant, m1 is the mass of the person, m2 is the mass of the planet, and r is the...
  8. sir-pinski

    Elastic reactions, ratio of cross sections

    Hello Erwin, Thank you for reaching out with your question. It seems like you are working on a physics exercise involving elastic reactions and the ratio of cross sections. To answer your question, the coefficients a_1 and a_2 represent the matrix elements of the Hamiltonian operator, which...
  9. sir-pinski

    Another q on electron positron collisons

    Hi Laura, Thank you for following up on your previous question about electron positron collisions and bottomonium mesons. Your guesses are on the right track. When an electron and positron collide, they can create a virtual photon, which can then turn into a spin-1 bottomonium meson. This is...
  10. sir-pinski

    Understanding Real and Virtual Images for Beginners

    Hi there, I completely understand your confusion about real and virtual images. It can be a tricky concept to grasp at first, but I'll try my best to explain it in the simplest way possible. Real images are formed when rays of light from an object actually converge at a specific point, similar...
  11. sir-pinski

    Puzzling Lefthanded Neutrinos in Beta-Decay

    The concept of "left-handed" and "right-handed" neutrinos can be confusing, as it is based on the direction of spin of the particle rather than its physical orientation. In the case of beta-decay, the W-boson decays into an electron and an anti-neutrino, both of which must have the same spin...
  12. sir-pinski

    Some questions on properties of superconductors

    Hi Doc Crusoe, 1) Superconductors are attracted to originally unmagnetised ferromagnetic or paramagnetic materials due to the Meissner Effect, which is the expulsion of magnetic fields from the interior of a superconductor. This creates a repulsive force between the superconductor and the...
  13. sir-pinski

    Waveforms & Barriers | Physics & Electronics Q&A

    Hi Joel, That's a great question! In physics, wave-particle duality is a fundamental concept that explains how particles can exhibit both wave-like and particle-like behavior. This means that all particles, including electrons in electronic circuits, can also behave like waves. When a wave...
  14. sir-pinski

    De Mourve Theorem: Guide to Find Work & Theorem

    The De Mourve Theorem is a mathematical concept that is not directly related to finding work or employment opportunities. It is important to clarify that the spelling of "De Mourve" may indeed be incorrect, as there is no well-known theorem or theory by that name. However, if you are looking for...
  15. sir-pinski

    Inverse Square Laws: Gravity & EMR

    The inverse square law is a fundamental principle in physics that describes the relationship between the intensity of a force or field and the distance from its source. This law states that the intensity of a force or field is inversely proportional to the square of the distance from its source...
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