[Archive!] Pure mathematics, physics, chemistry, etc.: brain-training problems not related to trade in any way - page 415

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Richie:
Alexander, you've forgotten what 2nd space speed means :)
The speed a body has to hold to fly the hell off the Earth.)
 
TheXpert: Start emitting light intensively :) preferably in one direction only.
That's a great idea. You need a powerful energy source. And replace the light with something else .....
 
Richie:
That's a great idea. You need a powerful energy source. And replace light with something else .....
Same reactive motion, the radiating body loses energy and therefore mass
 
Richie:
So how much does a body moving at 2nd space speed weigh?
You do the math, I don't need it, by the way, what moves at that speed, 1.5 kg of flies in outer space?
 
Richie:
So how much does a body moving at 2nd cosmic speed weigh?
you didn't specify the trajectory and direction of travel, if the body moves towards the earth at this speed, the weight increases, if from - then vice versa
 
sanyooooook:
you did not specify the trajectory and direction of movement, if the body moves towards the ground at this speed then the weight increases, if from - then vice versa
And if "along"?
 
Richie:

And if "along" ?
is it tangential, through, then parabolic?
 
sanyooooook: how is it, tangential, through, then parabolic?
Imagine you are driving a car at 2nd space speed ....
 
Richie:
Imagine driving a car at 2nd space speed ....

I can't imagine )

ZS: if first speed is in orbit, switching to second speed would take me out of that orbit, into orbit of the Sun

 
sanyooooook: no idea )
Even fewer people imagine how a body can move without moving anywhere .....
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