4 м/мин=(4*60)/1 000=0,24 (км/ч)
10 км/мин=10*60=600 (км/ч)
Ответ А)
A=q*U=10*25=250 Дж
================
691*24=16584ч
48000000/16584ч=<span>2894.35км/ч
</span>
HYDRAS and the sun and the British British airways are looking out as much alike to school and how they are able for them and
1) P=A/t, t=A/P, A=FS=mgh, t=mgh/P
t=4600*10*8/12000=30.7c
2) P=A/t=FS/t=mgh/t=4.5*1000*10*100/60=