John Darby's user avatar
John Darby's user avatar
John Darby's user avatar
John Darby
  • Member for 8 years, 4 months
  • Last seen more than a month ago
  • Columbia, MO, USA
40 votes
Accepted

Does Newtonian mechanics work in polar coordinates?

40 votes

Why is it impossible for the reactor of the nuclear power plant to turn into an explosive nuclear bomb?

23 votes

Why is water a good neutron absorber?

21 votes
Accepted

Where does the law of conservation of momentum apply?

16 votes

Can heat(?) flow from a cold object to hot object?

14 votes

Why is the concept of torque necessary?

13 votes

What Fundamental Force do applied forces (kicking a ball, pushing an object) fall under?

12 votes
Accepted

If displacement is 0, does that mean initial velocity equals final velocity?

10 votes

Does an open or a closed cage of canaries weigh less when they are in flight?

10 votes

Why is there a maximum humidity?

10 votes

Can there be acceleration without work?

10 votes

Why are nuclear fusion reactors difficult?

9 votes

If two unlike forces act on two different points of a rigid body, won't the body just start to rotate?

9 votes
Accepted

A rolling stone on a rollercoaster

8 votes

Is projectile motion an approximation?

7 votes

Moment of inertia of 1/4 of a sphere

7 votes

Nuclear beta decay to hydrogen

7 votes

Why resistance increase in a series connection and decrease in a parallel connection?

7 votes

Why do we say that gravity did work on an object to give it velocity, when it already had that energy as a potential?

6 votes

Is there a name for this phenomena that I observed?

6 votes

How can a system have kinetic energy if the centre of mass of the system is stationary?

6 votes
Accepted

Why is the work done non-zero even though it's along a closed path?

6 votes

Is special relativity relevant to understand nuclear bombs?

5 votes

Where is (mechanical) energy conserved?

5 votes

Does work-energy theorem account for thermal energy?

5 votes
Accepted

Is temperature everywhere continuous?

5 votes

Why a fan make us feel colder instead of warmer in a cold room?

4 votes

Mathematical Definition of Power

4 votes
Accepted

Can mass-energy equivalence be used to measure absolute internal energy?

4 votes

Is it theoretically possible to keep the volume and temperature of a gas undergoing a chemical reaction, to which heat has been supplied, constant?

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