Answer:
The solution code is written in Python.
- def largest3(num1, num2, num3):
- largest = num1
- if(largest < num2):
- largest = num2
-
- if(largest < num3):
- largest = num3
-
- return largest
- first_num = int(input("Enter first number: "))
- second_num = int(input("Enter second number: "))
- third_num = int(input("Enter third number: "))
- largest_number = largest3(first_num, second_num, third_num)
- print("The largest number is " + str(largest_number))
Explanation:
<u>Create function largest3</u>
- Firstly, we can create a function <em>largest3 </em>which take 3 numbers (<em>num1, num2, num3</em>) as input. (Line 1).
- Please note Python uses keyword <em>def </em>to denote a function. The code from Line 2 - 10 are function body of <em>largest3</em>.
- Within the function body, create a variable,<em> largest</em>, to store the largest number. In the first beginning, just tentatively assign<em> num1 </em>to<em> largest</em>. (Line 2)
- Next, proceed to check if the current "<em>largest</em>" value smaller than the<em> num2 </em>(Line 4). If so, replace the original value of largest variable with <em>num2</em> (Line 5).
- Repeat the similar comparison procedure to<em> </em><em>num3</em> (Line 7-8)
- At the end, return the final value of "<em>largest</em>" as output
<u>Get User Input</u>
- Prompt use input for three numbers (Line 13 -15) using Python built-in <em>input</em> function.
- Please note the input parts of codes is done outside of the function <em>largest3</em>.
<u>Call function to get largest number and display</u>
- We can simply call the function<em> largest </em>by writing the function name <em>largest</em> and passing the three user input into the parenthesis as arguments. (Line 17)
- The function <em>largest </em>will operate on the three arguments and return the output to the variable <em>largest_number</em>.
- Lastly, print the output using Python built-in <em>print</em> function. (Line 18)
- Please note the output parts of codes is also done outside of the function<em> largest3</em>.
Answer:
i don't think i understand the question
Explanation:
Answer:
Force per unit plate area is 0.1344 
Solution:
As per the question:
The spacing between each wall and the plate, d = 10 mm = 0.01 m
Absolute viscosity of the liquid, 
Speed, v = 35 mm/s = 0.035 m/s
Now,
Suppose the drag force that exist between each wall and plate is F and F' respectively:
Net Drag Force = F' + F''

where
= shear stress
A = Cross - sectional Area
Therefore,
Net Drag Force, F = 

Also
F = 
where
= dynamic coefficient of viscosity
Pressure, P = 
Therefore,


<h2>
Corrected Question:</h2>
A step-up transformer has 26 turns on the primary coil and 720 turns on the secondary coil. If this transformer is to produce an output of 4100 V with a 16-mA current, what input current and voltage are needed?
<h2>
Answer:</h2>
The input current and voltage needed are 443 mA and 148 V respectively.
<h2>
Explanation:</h2>
In a step-up transformer, the relationship between the number of turns in its primary coil (
), the number of turns in its secondary coil (
), the input voltage (
), the output voltage (
), the input current (
), and the output current (
) is given by;
=
=
This implies that;
=
---------------------(i)
=
---------------------(ii)
From the question;
= 26 turns
= 720 turns
= 4100V
= 16mA = 16 x 10⁻³A
(a) Substitute these values into equation (ii) as follows;
= 
Solve for
;
= 720 x 16 x 10⁻³ / 26
= 443 x 10⁻³
= 443 mA
Therefore the input current needed is 443mA
(b) Also, substitute those values into equation (i) as follows;
= 
Solve for
;
= 4100 x 26 / 720
= 148 V
Therefore, the input current needed is 148 V