Official Answer
Answer
Shim impera, izwi kandi nka 'impera zuzuye,' zikorwa muguhuza igice cya nyuma cyumurongo kuri buri mpera yimpinduka nyinshi. Ibi birema $ 360 ^ {\ umuzenguruko} $ guhuza hejuru aho guhuza ingingo kuri mpinga. Ibi nibyingenzi kubisabwa aho isoko igomba gutanga igitutu kimwe kuri kashe cyangwa ubwoko bwo gutwara. Mugihe shim irangiye yongera uburebure bukomeye $ H_s $ $ $ 2t $, bigabanya cyane umwanya 'wohanagura' kandi bakemeza ko umutwaro woherejwe muburyo bumwe. Iharurwa ryibipimo byimpeshyi bigomba guhinduka kubera ko impera ya shim ikora nkimpinduka zidakora, kugabanya umubare wimikorere yimivumba ikora.
