Letase na visina od 30.000 metri, koga postigna 6,7 maha
Na kolku mala visina treba da leta so 9,6 maha za da gi zadovoli kriteriumite?
10 metri
100 metri
1000 metri
10.000 metri
...........
kolku vreme treba da leta za da gi zadovoli kriteriumite???
1 sekunda
1 minuta
1 sat
1 den
............
Inaku za tvoja informacija eve sto sve ima space shuttlot za da vlezi vo atmosferata i so koja brzina i so koja temperatura se spravuva toj materijal
The space shuttle enters the earth at a speed greater than 28,000-km/h. (OKOLU 23 MAHA) The shuttle will heat air molecules and friction is built up. The friction due to air raises the temperature to 1500 C (ZESKO A!). To protect from this heat spacecrafts are constructed of insulating ceramic materials.
• Reinforced carbon- carbon material is used for the wings and underside.
• High temperature black surface insulation tiles are used for the upper forward fuselage and around the windows
• White nomex blankets make up the upper payload bay doors, upper portion of the wings and mid/aft fuselage
• Low temperature white surface tiles are used for the remaining area.
The above materials are designed to absorb large quantity of heat. These materials have high heat capacity.........
Se uste tvrdis deka ne postoi materijal koj bi izdrzal 9+ maha???? (osven ako ne insistiras da leta na 10 metri visina posto nema da izdrzi udar vo dalnovod...)