Sean's user avatar
Sean's user avatar
Sean's user avatar
Sean
  • Member for 9 years, 6 months
  • Last seen more than 5 years ago
30 votes

What's the difference between centre of mass & centre of gravity for massive bodies?

12 votes

Why are stars white?

11 votes
Accepted

What exactly is fire?

11 votes

Should I always include units at every step?

10 votes

What is a rocket engine thrusting against in space?

10 votes

Number of significant figures

10 votes
Accepted

Is it possible to stop time?

9 votes

What does the colour of a light bulb depend on?

8 votes

What enables protons to give new properties to an atom every time one is added?

8 votes

Distinguishing between solid spheres and hollow spheres (equal mass)

8 votes
Accepted

Collision of two satellites

7 votes
Accepted

Will boomerang work in vacuum chamber on Earth?

7 votes
Accepted

How do you pronounce $\vec{A} \cdot \vec{B}$ and $\vec{A} \times \vec{B}$?

6 votes

Is there difference in force when the height increases?

4 votes
Accepted

why does lightning always come from the clouds?

4 votes

Why are rockets launched vertically?

4 votes
Accepted

Why dark matter and general relativity?

4 votes

Kinetic energy of an object at rest

3 votes
Accepted

How do you calculate the focal point location of a circular mirror?

3 votes

What is divergence?

3 votes

What would it be like "inside" a star?

3 votes
Accepted

Why does the light instantly disappear when we switch off the source?

3 votes

Drying clothes with the sun's heat, without any air

2 votes

Discovering new elements in zero gravity and in orbit?

2 votes

Dimensional or dimensionless constant

2 votes

Is there a prediction of quantum mechanics that could be construed as representing an "energy-time uncertainty relation?"

2 votes
Accepted

Explain the concept of "accumulated momentum" for an electron

2 votes
Accepted

If the universe is infinite, should there be a duplicate of me with probability 1?

2 votes
Accepted

What happen to a spoon which is detached from the satellite?

2 votes

Reconciling Units in Classical System Analogies: Why Does Torque Have Units of Energy?