Official Answer
Answer
Adadin raƙuman ruwa $ N$ ya yi daidai da jujjuyawar kuma daidai gwargwado kai tsaye zuwa cube na ƙarfin lodi. Musamman, nauyin $P$ yayi daidai da $N^4$. Koyaya, haɓaka $ N $ yana rage tsayin baka tsakanin kololuwa, wanda ke ƙara taurin kai amma yana iya haifar da matsalolin masana'antu da yawan damuwa a kololuwa. Don kwanciyar hankali, $N$ ya kamata ya zama lamba ko rabin lamba don tabbatar da rarraba kaya iri ɗaya. A cikin aikace-aikace masu jujjuyawar raƙuman ruwa, yawancin raƙuman raƙuman ruwa galibi ana fifita su don guje wa jitu mai jituwa tare da mitar juyi na shaft, musamman lokacin da saurin aiki ya kusanci mitar yanayin bazara $f_n = \ frac{1}{2π}\sqrt{\frac{k}{m}}$.
