Gravitational fields are also conservative; that is, the work done by gravity from one position to another is path-independent.
Work is simply any force applied over a distance. Clearly gravity is a force and can be applied as an object moves non-orthogonal to its field. Therefore, gravity does do work.
Kinetic energy is actually half m * v^2 - but it has nothing to do with this. You don't need to strike the plates quickly; the motion downward can in principle be arbitrarily slow, just as if you wind a crank you don't necessarily have to wind quickly.
The energy that can be generated (or I should say captured) by the plate is limited by the energy lost by the car. The car loses potential energy, which as dna_(c)(tm)(r) says is m*g*h.
The only reason kinetic energy would play a role is if we consider the force acting downward to derive from not just the weight of the car, but a component of its momentum - i.e., the car is going downhill and is being slowed down by *hitting* the plate, rather than smoothly riding over it.
I did a double take when I read the attribution of functional programming to K&R in your previous post. C, as an imperative language, is at the opposite end of the spectrum. Did you mean functional as in operational and practical, i.e., fit for a purpose?
Dude, it's the Grand Canyon. Every person on the planet could write "Kilroy was here" and there'd be room to spare. We've got as much right to make our mark on it as civilizations that will follow us - more even, because we were here first.
That depends on where the rocket was located and how big an area it wipes out on the ground underneath. Remember, there's no atmosphere to convey that energy to a wide area.
I actually used that line when tutoring someone for their Computer Science II course ("You can write your own class (object), with blackjack, and hookers"). I got nervous when I realized the person sitting next to him was a girl; fortunately she was a Futurama fan.
I'm okay with paying $50 for a sequel to a good game. What I'm not okay with is the feeling of being shafted by Valve, not because of this announcement, but because of the excruciatingly slow pace of development for DLC and bugfixes, and the fact that the game wasn't even completed (missing half the versus maps) until a relatively short while ago.
I thought at the time that they just pulled everybody off the L4D team after they sold, so they wouldn't have to invest any more resources in keeping people who already parted with their money happy. I guess I can stand corrected now; they pulled everybody off maintaining L4D1 to work on L4D2.
Meh. I hope they provide at least some marginal discount to L4D1 owners, just as a show of respect.
There is a big difference between the actions taken by Wikipedia and the holocaust.
:: Searching sarcasm generator for potential responses:: -- You think? / Go onnnn.....? / I don't see how. -- That reads like the thesis statement of an essay written in a high school social studies class. -- Historians have determined that there may be significant differences between the intentional and brutal genocide of twelve million people, and the addition of an IP address to a filter. News at 11.
Yes, yes, we know. Everyone knows we torture, but apparently no one in power cares. Best move on to more productive conversations, like how not to get picked up and tortured.
Insulting the French is a national pastime for us. I don't really know why, it doesn't make much sense to me. Wikipedia suggested it might be because we have few French immigrants compared to other nationalities, so in effect we're excused from trying to be politically correct to you.
For your information, the people who make jokes about France surrendering often actually believe that France is weak and that their proximity to the Nazis had nothing to do with their country falling. It's an excellent example of the Ugly American archetype.
In NY, implied consent is the reigning rule. Although you constitutionally can decline a test, doing so will result in penalties of one form or another.
Slashdot Mirror
Your one google does not support your claim. I counter it with two wikipedias and one miscellanea.
http://en.wikipedia.org/wiki/Work_kinetic_energy_theorem#The_relation_between_work_and_kinetic_energy
According to the work-energy theorem if an external force acts upon an object, causing its kinetic energy to change from Ek1 to Ek2, then [...]
http://en.wikipedia.org/wiki/Gravitational_force
Gravitational fields are also conservative; that is, the work done by gravity from one position to another is path-independent.
Work is simply any force applied over a distance. Clearly gravity is a force and can be applied as an object moves non-orthogonal to its field. Therefore, gravity does do work.
http://www.physics.upenn.edu/courses/gladney/phys150/lectures/lecture_oct_08_1999.html
This site demonstrates that you can define potential energy *in terms of this work*.
You must remember that the work-kinetic-energy-theorem states a relationship between work and only kinetic energy, not potential or total energy.
Kinetic energy is actually half m * v^2 - but it has nothing to do with this. You don't need to strike the plates quickly; the motion downward can in principle be arbitrarily slow, just as if you wind a crank you don't necessarily have to wind quickly.
The energy that can be generated (or I should say captured) by the plate is limited by the energy lost by the car. The car loses potential energy, which as dna_(c)(tm)(r) says is m*g*h.
The only reason kinetic energy would play a role is if we consider the force acting downward to derive from not just the weight of the car, but a component of its momentum - i.e., the car is going downhill and is being slowed down by *hitting* the plate, rather than smoothly riding over it.
Seriously, this has just embarrassed the government beyond reason. We might as well have no telemarketing restrictions or FTC.
I did a double take when I read the attribution of functional programming to K&R in your previous post. C, as an imperative language, is at the opposite end of the spectrum. Did you mean functional as in operational and practical, i.e., fit for a purpose?
Dude, it's the Grand Canyon. Every person on the planet could write "Kilroy was here" and there'd be room to spare. We've got as much right to make our mark on it as civilizations that will follow us - more even, because we were here first.
That depends on where the rocket was located and how big an area it wipes out on the ground underneath. Remember, there's no atmosphere to convey that energy to a wide area.
And the blackjack. Aw, forget the whole thing.
I actually used that line when tutoring someone for their Computer Science II course ("You can write your own class (object), with blackjack, and hookers"). I got nervous when I realized the person sitting next to him was a girl; fortunately she was a Futurama fan.
I'm okay with paying $50 for a sequel to a good game. What I'm not okay with is the feeling of being shafted by Valve, not because of this announcement, but because of the excruciatingly slow pace of development for DLC and bugfixes, and the fact that the game wasn't even completed (missing half the versus maps) until a relatively short while ago.
I thought at the time that they just pulled everybody off the L4D team after they sold, so they wouldn't have to invest any more resources in keeping people who already parted with their money happy. I guess I can stand corrected now; they pulled everybody off maintaining L4D1 to work on L4D2.
Meh. I hope they provide at least some marginal discount to L4D1 owners, just as a show of respect.
Damn Louisiana for making me side with Jindal! Damn them all!
There is a big difference between the actions taken by Wikipedia and the holocaust.
:: Searching sarcasm generator for potential responses ::
-- You think? / Go onnnn.....? / I don't see how.
-- That reads like the thesis statement of an essay written in a high school social studies class.
-- Historians have determined that there may be significant differences between the intentional and brutal genocide of twelve million people, and the addition of an IP address to a filter. News at 11.
I think your signature is appropriate for this discussion.
But I imagine it works about as well in any other thread.
What's next, will congressmen have to wear yellow, six-pointed stars on our clothing?
No, because Scientologists are not Jews.
God, you'd think this wouldn't be so difficult.
Don't worry; it's not like it was a real useful invention.
There are five lights.
Agreed. What the FUCK took them so long?
I thought it was OhCANada.
No, our *government* is restricted by religion. Our speech for the moment is fine, at least for anyone who's non-religious.
I believe in evolution, if that's what you mean.
Yes, yes, we know. Everyone knows we torture, but apparently no one in power cares. Best move on to more productive conversations, like how not to get picked up and tortured.
I didn't realize slashdot's Idiocracy literacy had fallen so much. It's a reference.
Insulting the French is a national pastime for us. I don't really know why, it doesn't make much sense to me. Wikipedia suggested it might be because we have few French immigrants compared to other nationalities, so in effect we're excused from trying to be politically correct to you.
For your information, the people who make jokes about France surrendering often actually believe that France is weak and that their proximity to the Nazis had nothing to do with their country falling. It's an excellent example of the Ugly American archetype.
And he was an engineer, too. I wonder if his degree was printed in crayon.
In NY, implied consent is the reigning rule. Although you constitutionally can decline a test, doing so will result in penalties of one form or another.
I define AOL as losers, irrespective of who lost or gained money.
You, sir, have won the pain game.