Lub suab nrawm yog qhov kev ncua deb mus rau ib chav tsev ntawm lub sijhawm los ntawm lub suab nthwv dej thaum nws nthuav tawm los ntawm qhov nruab nrab elastic. Ntawm 20 ° C, qhov ceev ntawm lub suab nyob rau hauv huab cua yog hais txog 343 meters ib ob, los yog ib mais ntawm 2.9 s los yog ib mais ntawm 4.7 s.
Lub suab nrawm yog dab tsi?
Ntawm 20 ° C (68 ° F), qhov ceev ntawm lub suab hauv huab cua yog li 343 meters ib ob (1, 235 km / h; 1, 125 ft / s; 767 mph; 667 kn), lossis ib mais hauv 2.9 s lossis ib mais hauv 4.7 s. Nws nyob ntawm qhov kub thiab txias thiab qhov nruab nrab los ntawm qhov uas lub suab nthwv dej nthuav tawm.
Puas nrawm ntawm lub suab sib txawv?
Lub suab nrawm yog ib qho tas li hauv cov pa roj thiab tus nqi ntawm qhov tsis tu ncua yog nyob ntawm hom roj (cua pa, ntshiab oxygen, carbon dioxide, thiab lwm yam) thiab kub ntawm cov roj.
Puas ceev lub suab ua tau?
Cov kws tshawb fawb tau tshawb pom qhov nrawm tshaj plaws ntawm lub suab, zippy 22 mais (36 mais) ib obSuab nthwv dej txav ntawm qhov sib txawv ntawm qhov nrawm hauv cov khoom, kua thiab roj, thiab hauv cov xeev ntawm cov teeb meem - piv txwv li, lawv mus nrawm dua hauv cov kua dej sov dua piv nrog cov txias dua.
Lub suab nrawm nrawm npaum li cas hauv qab dej?
Suab mus kwv 1500 meters ib obhauv dej hiav txwv. Lub suab mus qeeb dua hauv huab cua, ntawm li 340 meters ib ob. Qhov ceev ntawm lub suab hauv dej hiav txwv tsis yog tus nqi tas li. Nws txawv ntawm qhov me me (ob peb feem pua) los ntawm qhov chaw mus rau qhov chaw, lub caij mus rau lub caij, thaum sawv ntxov mus rau yav tsaus ntuj, thiab nrog dej tob.
