[질문] 중3-1학기오투과학70~72답좀요..

1.(4),2.w=120N,h=5cm,3.(3),(6),4.2개,5.(2),6.(5),7.100J,8.(3),9.ㄷ,ㄹ,10.(5),11.(3),12.(5),13.(2),(3),14.(4),15.120N,16.160N,17.(4),18.294W,19.도구를