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anton717
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But what kind of energy does a particle possesses at 0 height?
Can you be more specific?anton717 said:But what kind of energy does a particle possesses at 0 height?
Borek said:Height of 0 relative to what?
You have not said anything about whether the object is in motion or not. I guess you meant it is at rest, but even then question about "at rest relative to what" would be still an important one.
When a particle is at certain height (at rest) it has Potential Energy, when a particle is in motion, let's say, on the Earth's surface it has Kinetic Energy, but what about a particle is at rest and on the surface of the Earth? Does it have any kind of energy stored? I am not into physics so my questions may not be clear.Chestermiller said:Can you be more specific?
Chet
It still has potential energy. Its value is zero if you define potential energy relative to the surface of Earth (this is a purely arbitrary definition).anton717 said:When a particle is at certain height (at rest) it has Potential Energy, when a particle is in motion, let's say, on the Earth's surface it has Kinetic Energy, but what about a particle is at rest and on the surface of the Earth? Does it have any kind of energy stored? I am not into physics so my questions may not be clear.
At rest relative to the Earth's surface? Then the difference between the potential energy of the particle and the potential energy of the Earth's surface is zero. The difference between the particle's kinetic energy and the kinetic energy of the Earth's surface is zero. (Technically, the particle could have internal kinetic energy due to heat or chemical energy, but that's irrelevant in the given context.)anton717 said:When a particle is at certain height (at rest) it has Potential Energy, when a particle is in motion, let's say, on the Earth's surface it has Kinetic Energy, but what about a particle is at rest and on the surface of the Earth? Does it have any kind of energy stored? I am not into physics so my questions may not be clear.
nuuskur said:Why does a cat always land on its paws? Does the cat rotate itself somehow through mid air?
Right. The tail might have some stabilizing/control function, but cats can rotate without it in the same way they can do it with tail.Pythagorean said:I guess it's body distortions are probably more relevant than its tail in conservation.
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