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I was wondering...
I was thinking in reasonable terms of a world with super women but with with levels of strength ranging from being able to lift 25 tons to may be 2000 tons.
Normally I just go all out and imaging women with near limitless strength, but lately I been practicing some moderation. But I'm curious I know we got a lot of smart people hanging around.
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- Grayface
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I also think her strength would be the lesser of problems... moving one's body and arms at the 10,000 miles per hour or more that is necessary to accelerate the car would be even harder than being strong enough to do it. Nerve impulses, even if we take license with superconducting nerves, don't move fast enough.
Not to mention that the car would disintegrate from the massive acceleration before it burned up.
The only way is to be able to fly, and accelerate the car at something less than 10G's (windows and seats might pop out at that accleration, but most of the car would hang together) to sub-orbital speeds at very high altitude (very thin air, less air friction) before giving it a final gentle toss.
Physics is a bitch. Doesn't let you do the fun stuff.
Shadar
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- shadar
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Drag is approx equal to Veolocity cubed.
Atlas missles can launch 5000 lb payloads into geo-staionary orbit. They can launch a little more into lower orbits (like polar spy birds out of VAFB).
The Atlas uses one one substainer engine and two booster engines. Typically, at about 120 seconds into the launch it drops the two outside engines and continues on with the subtainer engine.
Max Q which is the greatest pressure on the Vehicle generally occurs around 60 thousand feet. When the space shuttle launches, It goes up with full power, then throttles back to I think 85% power and then after max Q is passed, it throttles back up to avoid tearing itself apart.
In both of the above senarios, there is more or less constant thrust until
either the engines stage (in the Atlas), of the main engine is throttled back
(as in the Shuttle). The accleration and the vehicles velocity is ever increasing due to the vehicle getting lighter with each lb of fuel being burned.
To get his car into orbit without totally destroying it she could have flown it up to at least 125 thousand feet, got it up to speed and then given it a little "toss" from there.
400 miles high is a pretty low Earth orbit and that would be around 2 million feet high. The best way for her to get it there would be just to fly it up at a constant acceleration not going too fast to either crush the car or rip it up from the drag pressures. She would just continue accelerationg until she was at the right height and speed for a low Earth Orbit and then let it go.
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- ace191
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Shadar
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- shadar
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I think on the shuttle they take off at 110% power (George Allen must have worked on the original team) and then at some point they pull back to 85% power until Max Q is safetly passed then back to to 100% continous power. I am just to lazy for this discussion to actually look it up!
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<sigh> So now everybody's a rocket scientist eh? <snicker> Liked it better when y'all were comedians. Even a leming herd of critics was safer to life n' limb.
Cars can too be tossed into orbit fellas. You just need to use both sides of your brain at once. It's totally undergrad. Just start by considering the rocket equation and the assumptions that it makes. Drop a few and work it out from there.
That's all I'm ever gonna say on the subject.
And fellas? If you've never been paid to recite the rocket equation by heart--you can't call yourself a real rocket scientist. That's pretty much the test.
-Paw
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- WhitePaw
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It was on that basis that I assumed the required acceleration (given that her arm sweep can't be more than a meter and a half or so) to reach orbital velocity would tear the vehicle apart. Also that initial velocity at ground level would burn the car up.
I'm guessing you'd need 25,000 to 30,000 miles per hour as it leaves her fingertips. Maybe a lot more. But it would be nice to see you work the math, given you seem to think its possible within those constraints.
Shadar
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- shadar
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F in a rocket motor is equal to (dM/dt)V rel
Next question professor.
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- ultragirl
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Although there is a way to blow a car into orbit.
Oops. I've sed too much.
:twisted:
Wuv,
-Paw.
P.S. And I know ya had to look up the equation, and its a free forum. Doesn't count for nuthin

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