I guess the correct answer is the first one.
PE = mass * height * 9.81
PE = 142 * 25 * 9.81
PE = 34825.5 J
To answer this question is necessary to apply the concepts related to Bernoulli's equation. The Bernoulli-related concept describes the behavior of a liquid moving along a streamline. Pressure can be defined as the proportional ratio between height, density and gravity:

Where,
h = Height
= Density
g = Gravity
Our values are
density of water at normal conditions
h = 7.3m

PART A) Replacing these values to find the total pressure difference we have to



In this way the pressure change would be subject to




PART B) Considering the pressure gauge of the group as the ideal so that at a height H the water cannot flow even if it is open we have to,



Therefore the high which could a faucet be before no water would flow from it is 21.42m
The correct answer is alpha
Answer:
Time elapsed
Explanation:
Acceleration is a vector quantity. It is defined as:

where
v is the final velocity
u is the initial velocity
t is the time elapsed
Acceleration is measured in meters per second squared (m/s^2). It must be noticed that acceleration is a vector, so it also has a direction. In particular:
- when acceleration is negative, it means that the object is slowing down, so acceleration is in opposite direction to the velocity
- when acceleration is positive, it means that the object is speeding up, so acceleration is in the same direction as the velocity