General and Special Relativity

The Theory of Special Relativity was published in 1905. General Relativity was published in 1915.

Lego bricks require precision accuracy in manufacturing to ensure they fit perfectly together and create stable structures. This precision allows for consistent quality and ensures that the pieces will interlock securely without gaps, giving builders the ability to create complex and detailed designs. Additionally, precise manufacturing helps to maintain the brand's reputation for high-quality products.

All substances are in a solid state at very low temperatures, due to the very slow movement of their particles. This phenomenon is known as cryogenics, where materials are cooled to extremely low temperatures to achieve various scientific and practical purposes.

Not necessarily. If something brittle were to crash into something hard, it would shatter before it could pass through. On a related note, however, there is a small but non-zero chance that something can pass through something else through quantum tunneling.

The speed of an object does not change if only its mass is doubled. The speed of an object is determined by its velocity, which is independent of its mass. However, doubling the mass of an object will affect its momentum and kinetic energy.

Einstein's general theory of relativity revolutionized our understanding of gravity, showing that it arises as a result of the curvature of spacetime by matter and energy. It explains phenomena like the bending of light around massive objects, the existence of black holes, and the expansion of the universe. Its predictions have been confirmed by numerous observations and experiments, solidifying its influence on modern physics and our perception of the cosmos.

The speed of the vibration changes the pitch of a sound. A higher speed of vibration creates a higher pitch, while a lower speed of vibration creates a lower pitch. The size of the vibration does not directly affect the pitch, but it can influence the volume or intensity of the sound.

If an object is stationary on a surface then the forces acting on it are the Gravitational force and the Normal force(the force of the surface pushing back against the object). Technically you could be pulling(or pushing) that object from opposite directions with equal forces and it would remain stationary. The important thing to understand is that a stationary object remains stationary so long as the net forces applied to it equal zero.

None, as "not moving at all" is just moving at a constant speed of zero.

Special relativity shows that there is nothing unique or different about zero speed. It is just a value of constant speed.

The net amount of entropy in the universe can only decrease if there is a localized decrease in entropy, which requires a larger increase in entropy in the surrounding environment to comply with the second law of thermodynamics. This is a highly unlikely scenario on a cosmic scale, as the overall trend in the universe is towards increased entropy.

The British scientist Sir Arthur Eddington tested Einstein's theory of relativity during a solar eclipse in 1919 by observing the deflection of starlight passing close to the sun. His observations supported Einstein's predictions, confirming the bending of light around massive objects as predicted by general relativity.

In the measurement of an object's length, simultaneity is important because different points on the object may be measured at the same time to determine its overall length. For accurate measurements, it is crucial to ensure that all measurements are taken simultaneously to avoid errors due to changes in the object's position or shape over time. Therefore, accounting for simultaneity helps maintain precision in determining the length of an object.

when the particle moves with the speed of light,the mass of the particle increases to infinity.... this is as per Einstein's theory of relativity....n its true.... some people say the mass decreases to zero when the particle travels with the speed of light....they are "INSANE"

Assuming no external energy is added or lost, the total energy of a closed system remains constant. Therefore, after 1.1 hours, the total energy of the system will still be 7944 J.

The five properties of magnets are:

1. Attraction and repulsion: Magnets can attract and repel other magnets or magnetic materials.
2. Pole orientation: Magnets have two poles, north and south, that determine their orientation.
3. Magnetic field: Magnets create a magnetic field around them that exerts a force on nearby objects.
4. Retentivity: Magnets can retain their magnetic properties once magnetized.
5. Induction: Magnets can induce magnetism in nearby materials without direct contact.

Grass is a mixture because it is made up of multiple components such as water, cellulose, chlorophyll, and minerals. Each component retains its individual properties and can be separated from the others.

Albert Einstein first proposed the theory of relativity in 1905 through his paper on special relativity, which was later followed by his development of general relativity in 1915.

See this link for relatavistic mass:

hyperphysics Dot phy-astr Dot gsu Dot edu/hbase/Relativ/tdil.html

It is not letting me put the link in as normal, so I put the "dots" in.

Remember that momentum is conserved. Since initial momentum is zero (since it is at rest) the net momentum of the two particles must cancel each other to equal zero. They are traveling in opposite directions. Let the rest mass of one particle equal m1, then the rest mass of the other particle is (3.34 x 10^-27 kg) - (m1). Plug those into the relatavistic mass equations, and set the magnitudes of momentums equal. Then you can solve for m1.

Quantum mechanics and relativity are both parts of the same puzzle: how the universe works. They are both equally important, because they both explain things that are not explained by classical physics.

The Higgs field has a non-trivial self-interaction, which leads to spontaneous symmetry breaking: in the lowest energy state the symmetry of the potential (which includes the gauge symmetry) is broken by the condensate.

In the simplest example, the spontaneously broken field is described by a scalar field theory. In physics, one way of seeing spontaneous symmetry breaking is through the use of Lagrangians. Lagrangians, which essentially dictate how a system will behave, can be defined in potential terms:

L = du(f)du(f) - V(f).

It is in this potential term V(f) that the action of symmetry breaking occurs. The potential graph of this function has the look and appearance of a Mexican hat.

The speed of light in a vacuum is absolute, unchangeable and can't be exceeded. The speed of light anywhere else depends on the material it moves through. c is indeed the c in e=mc2 - it is also the speed of light in vacuo. Any material has a speed of light associated with it, but that speed is not c, and that speed is neither a fundamental constant nor a universal speed limit. Photons are limited to that speed while in the material - that is what causes refraction. Material particles (those with mass) are not subject to the speed limit, any more than a rifle bullet is limited by the speed of sound. When a rifle bullet passes close to you, you hear a crack; this has the same origin as the sonic boom from an aircraft going supersonic. If a material particle that is travelling at close to c enters a material where the speed of light is less than the speed of the particle a shock wave is generated which is closely analagous to the sonic boom. There is no sound, just electromagnetic radiation, known as Cerenkov radiation. If you ever get a chance to observe a University reactor, almost all of which are water moderated, look down into the pool and admire the beautiful blue-green light surrounding the reactor core. That is Cerenkov radiation, caused by particles produced by the reactor going faster than the speed of light in water. As the particles bleed off energy into e-m radiation, they slow down. Once they are below the speed of light in water the Cerenkov production stops. It normally takes only a few feet.

A thought experiment: A mile high unlit black box is setting on earth. Three lit rocks are dropped from the top a few seconds apart with a sleeping astronomer (who knows nothing about his situation) on the second rock. Astronomer wakes up sees rocks 1 and 3 accelerating away from him and assumes his universe is expanding.

Hubble's discovery of the expanding universe in the 1920s provided evidence against the static universe model favored at the time, which relied on a cosmological constant to maintain stability. By observing that galaxies were moving away from each other and the universe was expanding, Hubble's findings contradicted the need for a cosmological constant to explain a static cosmos.