To solve this problem it is necessary to use the concepts related to pressure depending on the depth (or height) in which the object is on that fluid. By definition this expression is given as

Where,
Atmospheric Pressure
Density, water at this case
g = Gravity
h = Height
The equation basically tells us that under a reference pressure, which is terrestrial, as one of the three variables (gravity, density or height) increases the pressure exerted on the body. In this case density and gravity are constant variables. The only variable that changes in the frame of reference is the height.
Our values are given as




Replacing at the equation we have,




Therefore the pressure inside the hose is 0.1089Mpa
Answer:
The result is an unbalanced force to the right or acting in the a-axis.
Explanation:
For the first diagram, we propose a sum of forces on the X & y axes and include these forces arithmetically, i.e. the upward forces with a positive sign and the downward forces with a negative sign. Forces to the right with positive sign and forces to the left with negative sign.
ΣFx = 0
+ 1 +3 = Fx
Fx = 4 [N] (units of Newtons]
ΣFy = 0
-2 + 2 = Fy
Fy = 0
Therefore the result is an unbalanced force to the right or acting in the a-axis.
The can use D=m of the metal /volume
I think the answer is thymine