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Energy and mass cannot be equaled, but they are related from Einstein's equation, E = m * c2, where E = total energy of the object; m = the object mass; and c = the speed of light. If your question is whether we can convert the object, as a physical entity that we can see, completely into energy, the answer will have to be no. A 100% efficient process is not known (except for the interaction between a particle and its antiparticle, so small that we cannot see) -- even a supernova results in some gases escaping and gases have mass.
In the reversal, a particle and its antiparticle can result from energy interactions. For example, a positron and an electron can be created when two gamma-ray photons collide.
In the final analysis, in a closed system, the ratio of matter and energy may vary but the total effective energy or effective mass (we can convert everything to mass or energy using Einstein's relation) is a constant. You cannot create more mass from its equivalent energy or more energy from its equivalent mass, according to Einstein's equation. As of now, a hundred-percent efficient conversion can only be found in the subatomic world.
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What else can I help you with?
Which is heavier a pound of feather or a pound of tomatoes?
They are the same weight but the feathers take up a lot more space.
What happens to kinetic energy if the mass is doubled?
If mass is doubled while velocity remains constant, the kinetic energy will also double since kinetic energy is directly proportional to the mass. This is because kinetic energy is calculated using the formula KE = 0.5 * mass * velocity^2.
How do you increase the potential energy of a wagon without increasing its mass?
You can increase the potential energy of a wagon by lifting it to a higher elevation. This increases its gravitational potential energy without changing its mass.
What quantities do not change during a nuclear reaction?
During a nuclear reaction, the total number of protons and neutrons (mass number) remains constant, as well as the total charge (atomic number) of the atoms involved. The total energy before and after the reaction also remains the same, as dictated by the law of conservation of energy.
What is -1211.5 joules per kelvin converted to kilijoules per moles?
These are not compatible. The first is Energy per Temperature. The second is Energy per amount of matter.
Proof of E equals MC2?
Take a mass of 1 gram. Convert it entirely to energy, and measure that energy. You will find that this energy is equal to the square of the speed of light.
How do nuclear changes demonstrate the Law of Conservation of Mass and Energy concerning fission and fusion?
Fission and fusion involve the conversion of mass into energy, the total of which is conserved according to E = mc^2. However, at the quantum scale, which is where nuclear reactions take place, it's more accurate to view mass & energy as not two distinct concepts, but one, that of mass-energy. The "mass" of a nucleus is often slightly more than the total mass of it's constituent nucleons, with the excess being in the form of potential mass-energy from the residual strong force locking the nucleons together. In a reaction like fission or fusion, excess mass-energy locked inside the nucleus is released as radiant and kinetic energy.
How many electrons does it take to equal the mass of 1 proton?
It would take about 1836 electrons to equal the mass of 1 proton. This is because the mass of an electron is much smaller than that of a proton.
How many electrons does it take to equal the mass of one neutron?
One neutron is approximately equal in mass to one proton. Since an electron is much smaller in mass compared to a neutron or a proton, it would take a large number of electrons to equal the mass of one neutron.
Which is heavier a pound of feather or a pound of tomatoes?
They are the same weight but the feathers take up a lot more space.
How many mars would it take to equal the mass of earth?
Mars is 0.107 times the mass of earth. The reciprocal of that is the number of planets the mass of Mars it would take to equal a planet the mass of earth, or a little over 9 and 1/3.
How is mass converted into energy in nuclar fusion?
It isn't. This is a popular statement, but it is complete incorrect. Both mass and energy are conserved. Energy: The energy was already available previously, but in another form (nuclear energy, which is a type of potential energy). Mass: The heat or light that is produced is energy; it has an associated mass. For example, the photons (light) that leave the Sun not only take energy, but also mass, away from the Sun. This mass is exactly equal to the "missing" mass.
Can anybody run at speed of light?
No, a person can not run at the speed of light. To make something move faster and faster you need more and more energy, and the more mass it has, even more energy it needs to move. The reason why light can travel at its own speed is because it has no mass, and it would take an infinite amount of energy to make something with even the slightest amount of mass to make something move at the speed of light.
How does increasing the mass affect a body at rest?
Increased mass of a body at rest will take more energy to return the body to motion. Plus, it will increase the effect of gravity on the object.
Why can an object have kinetic energy and potential energy?
Because they are not mutually exclusive. Take for example a falling object; while falling at a given velocity it has (.5)(mass)(velocity)2=Kinetic Energy but also has the potential energy of whatever distance it has yet to fall, which equals (mass)(gravity)(height)=Potential Energy These two types of energy equal the Total Energy of the falling object, which never changes as it falls.
Is energy anything that has the mass and takes up space?
No. Matter is anything that has mass and takes up space (has volume). Energy has no mass and does not take up space, therefore it is not matter.
What happens if an electron falls towards a big positive charge and radiates away more than its mass equivalent?
It might be possible for an electron falling towards a big positive charge to radiate away more energy than its mass equivalent, but the energy it dumps on the way in would be energy that it gained during acceleration. If the question is aimed at a situation where the electron in question is radiating away energy derived from its mass being converted into energy, it should be noted that there is no mechanism know whereby mass-to-energy conversion can take place under the circumstances cited. There is nothing in accelerating an electron as described that will cause its mass to change into energy.
