user avatar
user avatar
user avatar
Bill N
  • Member for 7 years, 8 months
  • Last seen more than a month ago
  • Jackson, TN
36 votes
Accepted

How is it possible that it can get hotter in the car than it is outside?

29 votes
Accepted

How can wifi penetrate through walls when visible light can't?

25 votes

Why does the Earth follow an elliptical trajectory rather than a parabolic one?

25 votes

Why does the sun make me feel warm?

22 votes
Accepted

Platinum seems to have higher kinetic friction coef. than static - how is this possible?

20 votes

Can radioactivity be slowed through time dilation?

18 votes

Do all equations have identical units on the left- and right-hand sides?

16 votes
Accepted

4-momentum of photon

15 votes

Does the total kinetic energy change during an elastic collision?

11 votes
Accepted

Why doesn't Beta Decay violate the laws of physics?

11 votes

How does a resistor "know" to increase the potential difference across its ends?

10 votes

What *exactly* is electrical current, voltage, and resistance?

10 votes
Accepted

What is tension force?

10 votes
Accepted

Forced Oscillation Explained with Violin String

10 votes
Accepted

Why does lightning generate multiple branches?

10 votes

Why do lightning rods have a sharp point at the top?

10 votes
Accepted

How does wax fuel a flame?

9 votes

Why does time exist?

8 votes
Accepted

How does protium-protium fusion work?

8 votes

Do all frequencies of light have the same speed?

7 votes

How do I experimentally measure the surface area of a rock?

7 votes

How much current will go through my body if I were to put my finger in an outlet?

7 votes

Why is the number of isotopes of an element bounded?

7 votes

How to convert the electron volt into Velocity unit?

7 votes
Accepted

How can we know the state of a quantum system?

6 votes

What do "tangential and centripetal acceleration" mean for non-circular motion?

6 votes

Can ionizing radiation cause a proton to be removed from an atom?

6 votes

What is the difference between electric potential, potential difference, and voltage?

6 votes

How to prove the constant speed of light using Lorentz transform?

6 votes
Accepted

Acceleration Due To Gravity When Finding The Weight Of An Object

1
2 3 4 5
23