The object did not move / was kept from moving.
Answer:
I'd love to help, but there isn't anything to choose from.
Answer:
7.5 cm
Explanation:
In the figure we can see a sketch of the problem. We know that at the bottom of the U-shaped tube the pressure is equal in both branches. Defining
Ethyl alcohol density and
Glycerin density , we can write:

Simplifying:

On the other hand:

Rearranging:

Replacing (2) in (1):

Rearranging:

Data:



Aw don’t say that! I’m sure your beautiful:)