2006-07-02 12:17:49 · 14 answers · asked by jafco13 2 in Science & Mathematics ➔ Other - Science
the speed of re entry is much more than speed of launch silly
2006-07-02 12:19:18 · answer #1 · answered by Anonymous · 0⤊ 1⤋
The same reason why the after-shock of an earthquake is the most dangerous part of the earthquake. When the space shuttle launches into the atmosphear the friction and heat loosens up the tiles on the out side, but doesn't quite do the job. When the shuttle is going into re-entry the shuttle is already a little beat up and the tiles fly off hitting the shuttle causing damage and exposure, causing it to explode.
Not all shuttles burn up on re-entry, just to let ya know...
2006-07-02 13:47:44 · answer #2 · answered by Anonymous · 0⤊ 0⤋
On launch, the shuttle is moving into thinner and thinner atmosphere, as opposed to re-entry when the orbiter moves into more and more dense atmosphere.
On lift off, the shuttle experiences much smaller drag forces considering the direction it is launches (nose pointing upward). On re-entry, the shuttle enters the atmosphere with its blunt bottom side tilted up at an angle to help slow it down....creating much more drag.
On re-entry, the orbiter is traveling much faster than the shuttle is on liftoff.
When the shuttle is in the thickest part of the atmosphere (near the ground), it is traveling the slowest (just on take-off).
2006-07-02 12:50:11 · answer #3 · answered by mrjeffy321 7 · 0⤊ 0⤋
Speed of re-entry is faster than speed of exit. That is not the only thing though. The shuttle is going from a low density atmosphere, to a high density atmosphere. There for it is engaging exponentially increasing friction. If the speed of re-entry and exit was the same, the shuttle would still be hotter on re-entry.
2006-07-02 12:23:48 · answer #4 · answered by Christopher B 6 · 0⤊ 0⤋
re-entry of course not to mention In orbit, the shuttle will drift through -250°F. vacuum, what engineers call the "cold soak." It's cold enough to embrittle and shatter most materials. During reentry, the ship's skin goes from cold soak to 2,700°F., hot enough to transform many metals into silly putty.
2006-07-02 12:29:16 · answer #5 · answered by ~ 4 · 0⤊ 0⤋
because when it is leaving the atmosphere it is forcing itself to escape the gravity of the earth, and is actually not going all that fast, at least not fast enough to make enough friction to cause that much heat. When it is in reentry, it is actually just in a controlled fall, getting faster and faster, and the friction of all the air particles heats it up quickly and much hotter than when it leaves.
2006-07-02 12:24:49 · answer #6 · answered by judy_r8 6 · 0⤊ 0⤋
The re entry speed of the space shuttle (18,000 MPH) is much higher than the speed attained at launch (3094 MPH).
2006-07-03 00:13:49 · answer #7 · answered by Anonymous · 0⤊ 0⤋
before everything, the area Shuttles have all been retired, so they are actually not area of the story from now on. The Hubble area Telescope is in a good orbit, so is basically in unfastened fall, with the forces of gravity and inertia balancing one yet another out.
2016-12-10 03:43:58 · answer #8 · answered by ? 4 · 0⤊ 0⤋
As the shuttle leaves the atmospher, it encounters less and less resistance. Moreover, its leading edge has much less surface area in takeoff (its nose) than in landing (the whole underside). As it lands, there is an ever-increasing friction from the denser and denser air striking the craft as it drops at intense speeds.
2006-07-02 12:22:42 · answer #9 · answered by James 7 · 0⤊ 0⤋
This has been asked already. There is a huge difference in the speed. Re-entry is much faster so the friction is much greater.
2006-07-02 12:21:19 · answer #10 · answered by Anonymous · 0⤊ 0⤋
When it is coming out of the atmosphere it has xtra force by the jets attached it. Why coming back in to the atmosphere it doesnt have any extra force so it has to get force by plumiting then i guess air restiantce trys to slow it down but it cant. :/
2006-07-02 12:21:17 · answer #11 · answered by Elric 2 · 0⤊ 0⤋