Kodi kuwerengera chiwerengero cha

chinthu chilichonse ali makhalidwe. Ndipo makhalidwe chachikulu cha chinthu chilichonse - kulemera, - kapena kani, yokoka yeniyeni, chiŵerengero cha kulemera makamaka thupi ndi buku limene mukukhala thupi ili. chiwerengerochi cimabwela mtima makina a nkhaniyo. Kudzera ife asamuke ku matanthauzo munda wa khalidwe. Nkhani salinso ndi misa amorphous, chopezera likulu lake yokoka kwa ife. Chabwino, mwachitsanzo - dongosolo dzuwa - onse a thupi lake ndi osiyana mu yokoka yeniyeni (mmene kuwerengera Molingana - basi pansipa), ngati ali ake kulemera ndi buku ake. Ngati ife kutenga popanda Earth wathu ndi chigoba chake (lithosphere, hydrosphere, mpweya), likukhalira kuti ali ndi kulemera yeniyeni, osiyana ndi munthu.

Mofananamo, munthu mankhwala zinthu ndi thupi lawo, komanso atomiki. Ndi umboni wa yokoka yeniyeni. Zodabwitsa ndizakuti, pali chabe zinthu zingapo zomwe angathe kupezeka mu mawonekedwe woyera, koma china chirichonse -connection zambiri khola ndipo amadziwika kuti zinthu zophweka. The lithosphere kwa dziko lathu oposa mazana asanu, aliyense - ndi kulemera yake yeniyeni. Kodi kuwerengera chiwerengero cha? Ndipo ambiri, zingachitike?

Kumene. Tsopano tiyeni tione mmene kuwerengera yokoka yeniyeni. Bwino kuchita izo pa zitsanzo konkire kuti izo momveka.

1. Mwachitsanzo, inu - mutu wa kupala matabwa shopu ndi kufuna kudziwa mmene kuwerengera chiwerengero cha kugulitsa katundu kapena kugwira ntchito kwa nkhani iyi. Iwo ayenera kudziwika: mtengo wa malonda wa mankhwala makamaka ndi buku okwana. Tiyerekeze tili: mankhwala - ndalama bolodi - 15500 (opaka), chiwerengero - 81,6%; ndalama matabwa - - mankhwala 30000 (opaka), chiwerengero cha 15,8% ndi kulemera; mankhwala - slab, ndalama - 190000 (opaka), chiwerengero cha 2.6%. Total: ndalama - 190000, ndipo chiwerengero (nawo), motero, 100%. Kodi kuwerengera chiwerengero cha gululo? Gawani 155000 kuti 190000, ndi kuchulukitsa ndi zana. Ife tifika 81,6%. Kuti ndi yokoka yeniyeni ya bolodi.

2. Kodi kuwerengera chiwerengero cha chinthu chilichonse?

The gawo chifukwa kawirikawiri kusokonezedwa ndi osalimba, ngakhale mfundo zosiyana kwathunthu. yokoka Specific sizikhudza kuti maonekedwe ndi mankhwala, ndipo kumasiyana ndi osalimba a nenani, unyinji wa kulemera.

. 2.1) kachulukidwe - chiŵerengero misa voliyumu ndi kulemera yeniyeni - kulemera kwa chiŵerengero buku, chilinganizo uyu akhoza kulembedwa monga: γ = mg / V. Ndipo ngati osalimba ndi chiŵerengero cha kulemera anakonzeratu voliyumu ya thupi, chilinganizo kupeza kulemera yeniyeni, motero, akhoza kulembedwa mu fomu iyi: γ = ρg.

2.2.) Ngati atafuna, kukula yeniyeni angapezedwe mwa chochuluka ndi kulemera, kapena njira komanso amayerekezera mfundo kuthamanga. Apa, mu Maphunzirowa hydrostatic aone kuti pali: P = Po + γh. Koma njira imeneyi ntchito Koma ngati pamene inu mukudziwa, popanda yekha, mfundo mpandawo. Pankhaniyi, chiwerengero cha kupeza chilinganizo amapeza mawonekedwe zotsatirazi: γ = P-Po / h. aone kuti pali The amagwiritsidwa ntchito pofotokoza zipangizo kulankhulana ndi zochita zawo. Pamaziko a deta experimental ndi chilungamo mapeto: chilichonse thunthu mu zotengera kulankhulana, adzakhala ndi kutalika yake ndi ndalama zake yofalitsira pamodzi mpanda wa chiwiya chimene thunthu ili.

2.3.) Kuti kuwerengera (kuwerengera) chiwerengero, mungagwiritse ntchito chilinganizo lina (Archimedes mphamvu). Kumbukirani maphunziro kusukulu ya sayansi? Mwina inde mayunitsi ayankhe yekha. Choncho, ife polimbikitsa kukumbukira: la Archimedes mphamvu silyl buoyancy. Kuganiza anapatsidwa katundu ndi kulemera ena (kulemera izi amaimira ngati "mamita"), kusunga madzi. Pa nthawi imeneyi, katundu bwanji magulu awiri, choyamba - mphamvu yake yokoka, ndipo chachiwiri - Archimedes (buoyancy mphamvu, ndi malangizo a vekitala adzakhala inversely mg). Mu chilinganizo, mphamvu ya Archimedes zikuwoneka ngati izi: Fapx = ρgV. Podziwa kuti kulemera yeniyeni wofanana ρg madzimadzi timapeza anthu aone kuti pali zotsatirazi: Fapx = yV, ndipo tikuphunzirapo: Y = Fapx / V.

Ndizovuta? Ndiye ife wosalira: kuti kuwerengetsa chiwerengero, gawani kulemera ndi voliyumu.