(1)看不清是“上部,下部”受的压强
(2)、V=(0.3-0.2)*0.01=0.001m^3 m=G/g =27/10=2.7kg
ρ=m/V=2.7/0.001=2.7*10^3kg/m^3
(3)G水=0.2*0.01*10*1000=20N F浮=ρ水gv=1000*10*0.001=10N G杯=6N
G=20+10+6=36N
P=G/S=36/0.01=3600Pa
(1)看不清是“上部,下部”受的压强
(2)、V=(0.3-0.2)*0.01=0.001m^3 m=G/g =27/10=2.7kg
ρ=m/V=2.7/0.001=2.7*10^3kg/m^3
(3)G水=0.2*0.01*10*1000=20N F浮=ρ水gv=1000*10*0.001=10N G杯=6N
G=20+10+6=36N
P=G/S=36/0.01=3600Pa