How kuwana zvakawanda?

Vakawanda vedu panguva yechikoro vakashamisika: "Sei kuwana muviri uremu"? Zvino tichaedza kupindura mubvunzo uyu.

Kuwana mukanyiwa kuburikidza inzwi rayo

Ngatitii, chamuinacho pane marita mazana maviri dhiramu. Muchanzwa kuzadza chose nawo Diesel huni dzaungashandisa kudziyisa bhaira zvavo zviduku. How kuwana zvakawanda casks akazara Diesel huni? Ngatiedzei kugadzirisa dambudziko iri pamwe newe nyore pakutanga kuaona.

Kuti vagadzirise dambudziko, sei kuwana mugove mashoko kuburikidza bhuku rayo zvikuru nyore. Nokuti mutoo uyu kushandisa chaicho giravhiti fuma

p = m / V,

apo peji ndiyo chaiyo arambe achirema ari pfuma;

M - rayo guru;

V - ane nzvimbo vhoriyamu.

Sezvo chiyero uremu richashandiswa magiramu, makirogiramu uye matani. Vhoriyamu matanho: masendimita cubical, decimeters uye mamita. Dzakananga giravhiti rinowanikwa muna makirogiramu / dm³, makirogiramu / m³, g / cm³, t / m³.

Saka, maererano nemamiriro ezvinhu enyika dambudziko, tinowana mudhiramu mazana maviri litres bhuku. Izvi zvinoreva kuti akaenzana Vhoriyamu 2 m³.

Asi uchida kudzidza sei kuwana mugove. Kubva apa payakavakirwa payo inodhindwa:

M = peji * V

Chokutanga, tinofanira kuwana kukosha R - dzakananga arambe achirema kuti Diesel mafuta. Find kukosha ichi zvinogona kushandisa dhairetori.

Mubhuku, tinowana kuti p = 860,0 makirogiramu / m³.

Takabva vakawana netsika kupinda fomura:

M = 860 * 2 = 1720,0 (kg)

Saka, mhinduro yomubvunzo wokuti sei kuwana guru yakawanikwa. Mumwe tani namazana manomwe namakumi maviri makirogiramu - ndiyo kurema mazana maviri litres kwechirimo Diesel mafuta. Zvadaro unogona chete kuita ine kukarukureta pamusoro zvachose kurema Upfu uye dzakoromora simba panguva Upfu ane solarium.

Kuwana uremu kuburikidza arambe achirema uye vhorumu

Kazhinji zvinobatsira mabasa anogona kuwanikwa Physics zvizhinji zvakadai vakawanda, arambe achirema uye vhoriyamu. Kuti vagadzirise dambudziko sei kuwana uremu, unofanira kuziva inzwi rayo uye arambe achirema.

Items kuti uchada:

1) Roulette.

2) Calculator (PC).

3) tichikwanisa yakayerwa.

4) mutsetse.

Zvinozivikanwa kuti anoramba pamwe chete vhoriyamu asi akaita akasiyana nezvinhu, vakawanda achange akasiyana (semuenzaniso, simbi, uye matanda). The vakawanda Miviri, vakaitwa imwe zvinhu (pasina voids), ndivo Proportional kuti bhuku kubatwa nyaya zvakananga. Zvikasadaro, anoramba - nhamba uremu-kuti-vhoriyamu zvinhu. Nhamba iyi kunonzi "arambe achirema kwenyaya." Tichadzivirirwa runotaurwa da tsamba.

Zvino, dambudziko kuti kugadziriswa sei kuwana uremu maererano nzira D = m / V, apo

M ndiye vakawanda nenyaya (mu kg)

V iri vhoriyamu yaro (mu cubic metres).

Nokudaro, arambe achirema mumwe pfuma ndiyo grammage yacho chiyero kwayo.

Kana uchida kuwana arambe achirema kwemashoko iro chinhu akasikwa, unofanira kushandisa tafura densities, iyo inogona kuwanikwa mureza mabhuku wefizikisi.

The vhoriyamu chinhu rinowanikwa kubva nzira V = H * S, apo

V - Volume (m³)

H - kureba chinhu (m),

S - pasi pechingoro nharaunda (m²).

Pakadaro, kana iwe usingagoni zvakarurama kuyera geometric parameters muviri, unofanira kuita kushandisa Archimedes 'musimboti. Nokuti ichi unoda mudziyo kuti ane chikero chinoshandiswa kuyera Vhoriyamu mvura uye osiyana chinhu mumvura, kureva, mumudziyo umo nokupesana. Kuti vhoriyamu, umo zviri mudziyo, ndiye Vhoriyamu muviri achawedzerwa, icho kunyudzwa mariri.

Kuziva vhoriyamu V uye arambe achirema yacho chinhu D, unogona kuwana nyore vakawanda kwayo maererano nzira M = D * V. iwe asati ngaaverenge mukanyiwa kunodiwa kuti vauye vose rwokuyera vezvikwata ari chete ezvinhu, somuenzaniso, muna SI ino ndiyo dzakawanda kuyerwa hurongwa.

Maererano pamusoro Masvomhu anogona kugumisa zvinotevera: kuwana zvinodiwa ukoshi ane anozivikanwa uremu uye bhuku anozivikanwa arambe achirema kunodiwa kuti vawande pamusoro arambe achirema kwemashoko muviri yakaitwa kubva iyo, iri vhoriyamu muviri.