its not ficticious. It provides a constant force, just like gravity, so the potential it gives is "real", just like gravitational potential. You could think of the situation as a physically possible situation of the ball going twards the earth, and then the Earth dissapearing. Or a charged...
uh, yes there is potential energy because the force of the fan is a conservative force. Do things gain potential energy when they are lifted against the force of gravity? yes they do. Do they gain potential energy when they are pushed against the fan? same thing, yes they do
I think this scenario violates the law of conservation of energy: A ball is rolling twards a fan, witch provides a constant force on the ball, with some amount of kinetic energy. As the ball gets closer to the fan, its kinetic energy is converted to "fan potential energy". Then, when the ball's...
I'm not in physics. I'm a high school student thinking about majoring in physics in college, so I don't know what field of physics I would (hypothetically) be in the future, or what enviorment I'd want to (hypothetically) work in.
I was very exited about this article until I got to this sentance:
"The American Institute of Physics reported a median annual salary of $80,000 in 2006 for its members with Ph.D.’s (excluding those in postdoctoral positions)"
Post docs aren't included in this article. How hard is it to...
How easy or hard is it to get a physics job with a Ph.D in physics? I hear horror stories of having to work as a postdoc for 10 years after getting the Ph.D making 30k...are these true? Is it possible for a reasonably talented (on the Ph.D scale) physicist to make at least 70k 1-2 years after...