# Tag Info

1 vote

### Electromagnetic contribution to the mass of proton

The electromagnetic contribution to the proton-neutron mass difference is a tiny effect of $0.58 \pm 0.16$ MeV. The main contribution to $m_p-m_n$ is a QCD effect (due to the mass difference of up and ...
• 11

### How do I calculate the mass of a moving proton?

Relativistic mass $= m_{rest}+ \frac{E_{kin}}{c^2}$ Relativistic mass$= \frac{1}{\sqrt{ 1-v^2/c^2 }} * m_{rest}$ Relativistic mass of proton is good for: Calculating force needed to steer the ...
• 1,640
Accepted

### How do I calculate the mass of a moving proton?

Suppose we accelerate a proton to a speed $v$ then crash it into some large mass $M$ so that the proton comes to rest inside the large mass. Then we measure the speed $u$ that the large mass + proton ...
• 334k
1 vote

### Magnetic Monopole mass-energy effect into Einstein-Field equations

Assuming Maxwell Electrodynamics, the effect is identical to an electric charge. For example, the solution of a charged black hole can also be considered for a black hole containing magnetic charge (...
• 9,711
Accepted

### How can positive energy fields negatively contribute to the mass?

Suppose you have a positive and a negative charge infinitely far apart. Each charge has a field around it and that field stores energy. The mass of the charged objects will include the energy of the ...
• 334k
1 vote

### Relationship between mass and the radius of curvature of space and time

What is the relationship between mass and the radius of curvature of space and time created due to the presence of the mass? It is not that simple. The curvature of space-time does not only depend on ...
• 27.6k

### Relationship between mass and the radius of curvature of space and time

The relationship between mass and the radius of curvature is encoded in the following equation:\begin{align}R_\mu=\frac{2G}{c^3}P_\mu\end{align} where $R_\mu$ is the component of the radius of ...

### Paradox approaching the speed of light/Planck temperature?

In the context of special relativity, what does it mean to accelerate a proton near the speed of light? In the proton's frame light moves away at $c$ in all directions, so it's not moving. If you want ...
• 24.2k
1 vote

### Have information bits a mass-energy equivalence?

Glancing at the paper https://www.researchgate.net/publication/333751969_The_information_content_of_the_Universe_and_the_implications_for_the_missing_Dark_Matter from a holistic standpoint, and ...
• 2,838