The water pressure is greatest at point B which has a larger diameter in this scenario.
<h3>What is Pressure?</h3>
This is defined as the force per unit area of a substance with its unit being Pascal.
The larger diameter will have more force acting on the sides which translates to a greater pressure.
Read more about Pressure here brainly.com/question/25736513
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The electromotive force (∈) = 2 V
<h3>Further explanation</h3>
Given
I=2 A
t = 30 s
E = 120 J
Required
The electromotive force (∈)
Solution
The electromotive force : the potential difference between two electrodes in galvanic cell
Can be formulated :

E = energy, J
Q = charge , Coulomb = i.t

Hi you didn't provide any images to solve the question, hence I am going to solve a different question of same concept so you can have an idea how to tackle such types of questions.(please refer to the attachment for question)
Answer:
<u> Please refer to the attachment for answers and explanation</u>
Explanation:
<u> Please refer to the attachment for answers and explanation</u>
<span>principal quantum number (n) </span>represents the relative overall energy of each orbital
Hope this helps!
A,c, and d are your answers :)