A solid block is attached to a spring scale. When the block is suspended in air, the scale reads 20.1 N; when it is completely i
mmersed in water, the scale reads 15.3 N.
A) What is the volume of the block?
B) What is the density of the block?
1 answer:
Answer:
A)
B) 
Explanation:
A) Using the Archimedes' force we can find the weight of water displaced:

Where:
: is the weight of the block in the air = 20.1 N
: is the weight of the block in the water = 15.3 N

Now, the mass of the water displaced is:

The volume of the block can be found using the mass of water displaced and the density of the water:

B) The density of the block can be found as follows:

I hope it helps you!
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