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 of 66.7 N is needed to keep it from sinking. a. Find the weight of the block.

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        

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.

massxgravity x heght=weightxheight= pe

4900=490xh

h=10