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A Future Plan (About Warfare Technology)

B - 2 Spirit Hello guys, Reading about the rising tensions between India - Pakistan and Iran - USA which may escalate into a large-scale war, I thought about post about the following topics 18/5/19 Electromagnetic spectrum 19/5/19 on Doppler's effect 20/5/19 about Radars 21/5/19 about Identify friends or foes 22/5/19 about Stealth Aircrafts 26/5/19 about Missiles 27/5/19 about Nuclear weapons 28/5/19 about Future in warfare technologies I will be back today later with an article about Electromagnetic spectrum. Hope you guys liked the planning In case any of you have any corrections or queries please feel free to tell me in the comments Your Universal Physics Expert Signing Off Khushil

The duo of Waves and Particles

Hello guys and welcome back to my blog Today we are going to answer a question aboout explaining particle wave duality So hold tight and off we go Particle wave duality : Publicized early in the debate about whether light was composed of particles or waves, a wave-particle dual nature soon was found to be characteristic of electrons as well. The evidence for the description of light as waves was well established at the turn of the century when the photoelectric effect introduced firm evidence of a particle nature as well. Wave-particle duality , possession by physical entities (such as light and electrons ) of both wavelike and particle-like characteristics. On the basis of experimental evidence, German physicist Albert Einstein first showed (1905) that light , which had been considered a form of electromagnetic waves , must also be thought of as particle-like, localized in packets of discrete energy . The observations of the Compton effect (1922) by Ameri

Real life uses of Newton's Laws of Motion

Hey guys have you ever wondered about the real life uses of Laws of Motion Well it's time to stop wondering.... First Law of Motion (Inertia): A body remains at rest, or moves in a straight line (at a constant velocity), unless acted upon by a net outside force. 1) Seatbelt : How does a seatbelt follow it ???????? Read on to find out : Have you ever noticed that on which principle does your car seat-belt work? Well, it’s again Physics. When you tighten your car seat-belt, it works on the concept of “Inertia.” Inertia is unwillingness or laziness of a body to change its state of rest or motion. In case of a car collision, your seat-belt helps prevent your body from moving in a forward direction; as your body resists being stopped because of inertia of motion. : If one drove a car directly into a brick wall, the car would stop because of the force exerted upon it by the wall. However, the driver requires a force to stop his body from moving, such as a seatbelt, othe

Dark Matter and Dark Energy

Saul Perlmutter Fritz Zwicky Hello guys and welcome back to my blog!! Today we are goimg to talk about Dark matter and Dark Energy Both of which are decisive to the future of the universe In the early 1990s, one thing was fairly certain about the expansion of the universe. It might have enough energy density to stop its expansion and recollapse, it might have so little energy density that it would never stop expanding, but gravity was certain to slow the expansion as time went on. Granted, the slowing had not been observed, but, theoretically, the universe had to slow. The universe is full of matter and the attractive force of gravity pulls all matter together. Then came 1998 and the Hubble Space Telescope (HST) observations of very distant supernovae that showed that, a long time ago, the universe was actually expanding more slowly than it is today. So the expansion of the universe has not been slowing due to gravity, as everyone thought, it has been acceler

God Doesn't Play Dice

Hello Guys and welcome back to my blog !!! Today we are going to talk about a huge controversy on Science during 1920s... Albert Einstein is one of the greatest and certainly best known physicists. If you ask anyone to name a physicist the most common answer you will receive is “Einstein”. Einstein is also famous for his quotations. Among the many Einstein’s quotations one is particularly popular among the general public: “God does not play dice”. But what did Einstein mean by this? The quotation says, “Quantum theory yields much, but it hardly brings us close to the Old One’s secrets. I, in any case, am convinced He does not play dice with the universe.” It was addressed by Einstein to Max Born (one of the fathers of Quantum Mechanics) in a letter that he wrote to Born in 1926. The “Old one” and “He” Einstein refers to is God. The fame of this quotation stems from two sources: 1) Einstein’s disagreement with the fundamental concept of Quantum Mecha

Answers to Physics Problems

This is true as the questions asked Yesterday were just simple questions requiring a good sense of logic So lets study each answer in detail Question #1 Momentum = Mass * Velocity So Initial Momentum (P1) = 50 kg * 4.8 m/s = 240 kg m/s And Final Momentum (P2) = 50 kg * 5.4 m/s = 270 kg m/s And the definition of Foce is The rate of change of momentum in an object is equal/proportional to force applied F = (P2 - P1) / Time Which will give the unit as kg meter per second squared. So (270 kg m/s - 240 m/s) / 3 seconds = (30 kgm/s) / 3 seconds = 10 kg m/s squared Also 1 kg m/s squared = 1 N So 10 kg m/s squared = 10 N ------------ Answer Question #2 Limiting Friction = 7.8 N (mew s * Normal) Friction acting on block is zero as it is not in motion That is it for today I will be back soon with more challenging physics problems Till then Bye Your Universal Physics Expert Signing Off Khushil