[Archive!] Pure mathematics, physics, chemistry, etc.: brain-training problems not related to trade in any way - page 458
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Apparently the moon didn't get its rotation from the dust cloud.
Really?
8-0
How's that, Richie. One power to the moon there and that's it. And the balance is stable. If it were unstable, big rocks (and they were, look at the craters hundreds of kilometers in diameter) would have orbited the moon.
One should not confuse statics with dynamics. The reasoning about at least three forces that should keep a body in balance is pure nonsense.
Richie:
And the electrostatic interaction is much stronger than the gravitational one. Sometimes.
Sustainable, that's what I'm talking about. There's a mug of beer on my desk. How many forces are acting on it? Some people will say one, others will remember Newton's law and say two, and others (like me) will say friction. Well, everyone has their own number of forces.
Stable, that's what I'm talking about. I've got a mug of beer on the table. How many forces are acting on it? Some will say one, others will remember Newton's law and say two, others (like me) will say friction. Well, everyone has their own number of forces.
What is the friction, please specify. Maybe you already got into the beer itself and saw the friction between the layers of beer?
And in general, there are countless forces acting on the mug. But all of them are not comparable to the two main ones - the force of gravity and the force of support pressure.
By the way, did you solve the cell problem on page 425 the fifth-grade way? (hint, I'm too lazy to browse:)
did you solve it or not?
Richie, you should know, it's your problem.
And in general, there are innumerable forces acting on the mug. But all of them are not comparable to the two main ones - the force of gravity and the force of support pressure.