Answer:
Explanation:
The volume of contaminated water
= cross sectional area x height of water level
3.14 x 9 x 9 x 7.5 ft³
= 1907.55 ft³
mass = density x volume
= 1907.55 x 63.5 lbs
m = 121129.425 lbs
This mass has to be raised to the height of 8 ft before evacuation .
There is a rise of centre of mass of
8 - 7.5/2 ft
h = 4.25 ft
Energy required
= mgh
= 121129.425 x 32 x 4.25
= 16473601.8 unit.
If a point has 40 J of energy and the electric potential is 8 V, the charge must be: A. 5 C
<u>Given the following the details;</u>
- Electric potential = 8 Volts
To find the quantity of charge;
Mathematically, the quantity of charge with respect to electric potential is given by the formula;
![Quantity \; of \; charge = \frac{Energy}{Electric \; potential}](https://tex.z-dn.net/?f=Quantity%20%5C%3B%20of%20%5C%3B%20charge%20%3D%20%5Cfrac%7BEnergy%7D%7BElectric%20%5C%3B%20potential%7D)
Substituting the values into the formula, we have;
![Quantity \; of \; charge = \frac{40}{8}](https://tex.z-dn.net/?f=Quantity%20%5C%3B%20of%20%5C%3B%20charge%20%3D%20%5Cfrac%7B40%7D%7B8%7D)
<em>Quantity of charge = 5 Coulombs</em>
Therefore, the quantity of charge must be <em>5 Coulombs.</em>
Find more information: brainly.com/question/21808222
Answer:
you calculate a specific type of run for example 100m and it takes 20 seconds to finish and calculate the time it takes them to finish
hope this helps
have a good day :)
Explanation:
The correct answer is D, Diamond