Why doesn't a moving object spontaneously slow down and heat up?
4426
Why can the entropy of an isolated system increase?
9207
How do gas molecules constantly bounce without losing energy?
65078
How does anything move?
135471
In wave motion of a string both kinetic energy and potential energy are minimum at $y=y_\text{max}$ then why does the string come down again?
90436
Everything moves, not just the selected vertex
19783
Why does a system try to minimize potential energy?
35963
Why is the state of a simple compressible system completely specified by two independent intensive properties?
13096
Is a spontaneous decrease in entropy *impossible* or just extremely unlikely?
70097
How does a bowl of hot water move by itself?
82514
Why we won't extract heat from air temperature?
144698
Why do many people say that virtual particles do not conserve energy?
109786
Can a human size object move so fast that it ceases to be observable?
51660
Don't certain processes decrease entropy?
131167
Kinetic energy of the object, but Potential energy of the system: Why is it so?
97185
Conservation of energy and Doppler effect?
140005
How will a particle with energy less than $V_{\rm min}$ behave?
57525
Why does an electric motor burn up when you physically stop it?