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Noumeno's user avatar
Noumeno's user avatar
Noumeno
  • Member for 3 years, 10 months
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41 votes

Why is acceleration directed inward when an object rotates in a circle?

30 votes

Why do we need instantaneous speed?

22 votes

Does a rotating rod have both translational and rotational kinetic energy?

21 votes

Why is angular momentum a vector?

10 votes

How does a satellite maintain circular orbit?

8 votes

Why is the photon clock equivalent to all clocks?

8 votes

How does the second law of thermodynamics function when a system is at maximum entropy?

6 votes

Potential energy and force

5 votes

Does all EM radiation consist of photons?

4 votes

Why did water not drip form this small bottle?

4 votes

Inertial and non-inertial frames in classical mechanics

4 votes
Accepted

What is the cause of electric force?

4 votes
Accepted

Questions regarding particle spin

4 votes

Why we add the individuals quantities to find the total amount of a system's "quantity"? Is this by definition of "total"?

4 votes

Does electric field obey the triangle law of vector addition and subtraction?

4 votes
Accepted

Do time dilation and length contraction cancel out?

4 votes

Nature of a superposition of states: is it true or only theoretical?

2 votes

How was it found that a charge produces an electric field rather than a 'local' electric force?

2 votes

Do all impossible processes disobey certain conservation laws?

2 votes

What is the $y$-axis in an electromagnetic wave?

2 votes

What is the work done by gravitational force when you lift an object?

2 votes

Why can ropes pull but not push?

1 vote

Would there be any gravity inside a hollow planet made of a spherical shell of basalt crust?

1 vote

Why the gravitational potential energy at infinity is zero?

1 vote

Definition of a joule

1 vote

Is my intuitive understanding of physical infinity correct?

1 vote
Accepted

Does electrostatic force act at the centre of mass of a body?

1 vote

Meaning and validity of the mass-energy equivalence valid if we don't know the one-way speed of light?

1 vote
Accepted

Potential energy of a particle moving in a circle

1 vote

Why does this block move backwards?