They are all valid actually since modern physics is more on Astrophysics Physical Chemistry and Bio Physics and Geophysics while Classical physics is more on Mechanics, optics, thermodynamics and waves ;D
Einstein's laws, particularly his theory of relativity, have been extensively tested and confirmed through numerous experiments and observations. They are considered highly valid and form the basis of modern physics. However, they may break down in extreme conditions such as near singularities or at the quantum level, where the theory of general relativity and quantum mechanics are not yet fully reconciled.
Yes, Albert Einstein's formula E=mc^2 is practically valid. It is a fundamental equation in physics that relates energy (E) to mass (m) and the speed of light (c). This equation has been proven through numerous experiments and is a cornerstone in understanding the relationship between energy and matter.
Nothing would exist, physics is responsible for matter taking shape. If there was no physics, the atomic make-up of all matter would break apart and the universe would itself would probably do the same.
Equiartition of energy assumes that each degree of freedom in a system contains the same average energy. However, in the quantum harmonic oscillator, the energy levels are quantized due to the discreteness of allowed energy levels in quantum mechanics. This leads to energy being restricted to certain specific values, rather than being continuously distributed among all possible states as assumed in classical physics.
The Law of Conservation of Energy is valid in all isolated systems where there is no external energy being added or lost. It is a fundamental principle in physics that states the total energy within a closed system remains constant over time.
becauze classical stastical does not obey pouli principle and in clasica physics particles are distinguishable , non interacting, identical in nature and are in thermal equilibrium as well.
yes
Einstein's laws, particularly his theory of relativity, have been extensively tested and confirmed through numerous experiments and observations. They are considered highly valid and form the basis of modern physics. However, they may break down in extreme conditions such as near singularities or at the quantum level, where the theory of general relativity and quantum mechanics are not yet fully reconciled.
Currently, the Planck length is believed to be the smallest meaningful unit of length in physics. It is thought to represent the scale at which classical notions of spacetime cease to be valid, and quantum effects dominate. However, due to the limitations of our current understanding of physics at such small scales, it is uncertain if anything smaller than the Planck length exists.
never
Yes, the universal laws of gravitation and motion proposed by Sir Isaac Newton in the 17th century are still very much applicable and relevant today. These laws form the basis of classical mechanics and are used extensively in the fields of physics and engineering to describe the motion of objects and interactions between masses. Despite being refined by subsequent scientific discoveries, they remain fundamental principles in understanding the physical world.
A classical experiment should provide the researcher with reliable and valid data to test a hypothesis. It should allow the researcher to establish cause-and-effect relationships and draw meaningful conclusions based on the results.
That would be quite a radical change; many other laws of physics we are accustomed to would then no longer be valid, either.
religious beliefs and social structures are closely related
For an experiment to be valid, it needs a control group to compare results, random assignment of participants to groups to minimize bias, manipulation of an independent variable to observe its effect, and reliable measures to accurately record outcomes.
You can compare this with English usage. I can say to you, "Jeet yet?" and you would probably understand me to mean, "Did you eat yet?" One of these sentences is valid English, the other is questionable. In the same way you can write valid XML and you can write XML with numerous imperfections. Many XML language processors are capable of understanding both. However, it's safer to write valid XML.
Yes, Albert Einstein's formula E=mc^2 is practically valid. It is a fundamental equation in physics that relates energy (E) to mass (m) and the speed of light (c). This equation has been proven through numerous experiments and is a cornerstone in understanding the relationship between energy and matter.