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Irina18 [472]
3 years ago
14

The density of un-set concrete is 2.40 x 10 3 kg/m 3 . When a block with volume 0.0708 m 3 is submerged in the liquid, a force o

f 66.7 N is needed to keep it from sinking. a. Find the weight of the block.
Physics
1 answer:
Alenkinab [10]3 years ago
6 0

Answer:

The answer to your question is weight =  1667 N  

Explanation:

Data

density = 2.40 x 10³ kg/m³

volume = 0.0708 m³

Force = 66.7 N

weight of the block = ?

- Formula

  density = mass / volume

- Solve for mass

   mass = density x volume

-Substitution

   mass = (2.40 x 10³)(0.0708)

-Result

   mass = 169.92 kg

-Calculate the weight of the body

   weight = mass x gravity

-Substitution

   weight = 169.92 x 9.82

-Simplification

   weight = 1666.9 N ≈ 1667 N        

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