Current location - Information Consultation Platform - Information Service - (2003? In order to measure the density of liquid and solid metal block, Xiao Li first hangs a metal block under the spring scale and bounces it when it is still.

(2003? In order to measure the density of liquid and solid metal block, Xiao Li first hangs a metal block under the spring scale and bounces it when it is still.

The readings of the three pictures are: GA=3.2N, F 1=2.6N, VA=V row =50cm3=50× 10-6m3, g =10n/kg;

(1) Volume of liquid overflowing from the overflow cup:

V overflow =V line = 50cm3 = 50x 10-6m3,

(2) The buoyancy a receives is:

f float = GA-f 1 = 3.2N-2.6N = 0.6N，

According to Archimedes principle, F float = ρ liquid? g？ Line v:

ρ liquid =F floating gV row = 0.6n10n/kg× 50x10? 6 m3 = 1.2× 103kg/m3；

(3)∫G = mg，

∴ma=gag=3.2n 10n/kg=0.32kg，

The density of the metal block a is:

ρA=mAVA=0.32kg50× 10？ 6 m3 = 6.4× 103kg/m3；

So the answer is: (1) 50; (2) 1.2× 103; (3)6.4× 103.

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