Answer:
Explanation:
From the given information:
Let y(t) be the amount of sugar in tank A at any time.
Then, the rate of change of sugar in the tank is given by:

The rate of the sugar coming into the tank is 0


Initial amount of sugar = 25 Pounds
Now; y(0) = 25
25 = Ce⁰
C = 25
So; y(t) = 25 
Thus, the amount of sugar at any time t = 
B) For tank B :

Answer:
The correct option is: (C) It included negatively charged particles.
Explanation:
Sir Joseph John Thomson proposed an atomic model, known as the plum pudding model in 1904.
In this model, he<u> compared an atom to a plum pudding</u> and suggested that the <u>negatively charged electrons are the plums that are embedded in a uniform positively charged spherical pudding.</u>
Therefore, according to the plum pudding model, <u>an atom has no net electric charge</u> and <u>contains negatively charged electrons.</u>