-
2526.
0Böyle bir oğlunuz olsaydı ne yapardınız ?
- 2527.
-
2528.
0yolla panpa
- 2529.
-
2530.
0Any discussion of what happens when an object breaks the sound barrier must begin with the physical description of sound as a wave with a finite propagation speed. Anyone who has heard an echo (sound waves reflecting off a distant surface) or been far enough away from an event to see it first and then hear it is familiar with the relatively slow propagation of sound waves. At sea level and standard atmospheric conditions of 22 degrees Celsius, sound waves travel at 345 meters per second (770 miles per hour). As the local temperature decreases, the sound speed also decreases, so for a plane flying at 35,000 feet¿where the ambient temperature is ¿54 C¿the local speed of sound is 295 meters per second (660 miles per hour).
-
2531.
0The last of us
-
2532.
0#811505
-
2533.
0eşek şakaları
- 2534.
- 2535.
- 2536.
-
2537.
0inciswf.com/1284994007.swf
-
2538.
0-San Pedro Sula, Honduras
- 2539.
-
2540.
0ÇiĞ DÖNER (BEYAZ ET)
-
2541.
0yapanda yapmayan da seni gibsin.
- 2542.
-
2543.
0#UykuDenenŞey
-
2544.
0oyunuz kaydedildi. ":("
- 2545.