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Rodney Dunning's user avatar
Rodney Dunning's user avatar
Rodney Dunning's user avatar
Rodney Dunning
  • Member for 6 years, 3 months
  • Last seen more than 1 year ago
22 votes

Is there a name for what Feynman called a fundamental constant i.e. "ratio of electrical repulsion to gravitational attraction between electrons"?

9 votes

Why is Newton's Law valid in Relativistic mechanics?

8 votes
Accepted

Gravitational effects of a single human body on the motion of planets

5 votes
Accepted

Can Coulomb's law ever be used with moving charges?

4 votes
Accepted

Does Newton's Law of Universal Gravitation work when particles are very close?

4 votes

What kind of matter are black holes made of?

3 votes
Accepted

What happens inside the black hole?

3 votes

Switching between Lorentz frames

3 votes

Why do physicists say information can't travel faster than light speed?

2 votes
Accepted

Why is it possible to write the electrical potential as a sum of $\int dV \,\rho/R$ and $\int da \,\sigma/R$?

2 votes
Accepted

What does the line of constant space time (interval) represent?

2 votes

Couldn't you use a spring to increase energy?

2 votes

Does infinite mass exist?

2 votes

How do astronomers explain trajectories of planets?

2 votes

Is the direction of average velocity the same as that of average acceleration and that of displacement?

2 votes

What does the $2g$ mean? $v_y^2=v_{0y}^2+2g(y-y_0)$

2 votes
Accepted

Can an attractive magnetic force ever slow down an electron?

2 votes

The $c^2$ factor is just a conversion factor from mass to energy?

2 votes

How to calculate speed, given potential energy and mass?

2 votes

Is it possible to measure the number of spacetime dimensions?

2 votes

Why can work done by friction be negative if work is a scalar?

2 votes

Can you affect higher dimensions from lower ones?

1 vote

Work done by friction between two bodies with different velocities

1 vote
Accepted

Can i approximate a system of two objects attached to a rope with a single object?

1 vote

Varying magnetic field creates varying electric field. Does constant magnetic field creates a constant electric field?

1 vote

Dynamics of a particle moving in a Straight line (Lift Problems)

1 vote
Accepted

Fluidity: Convex or level

1 vote

Do light beams need to be seen to be observed?

1 vote

Is there a chance for moon to collide with earth?

1 vote

Is there any way looking at Stars from that I can understand that we are revolving around the Sun?(Not caring about other planets for now)