I believe the correct answer is d. thermosphere.
Answer:
T = 51.25°C
Explanation:
Applying the law of conservation of energy, we get:
where,
m₁ = mass of cold water = 175 g
m₂ = mass of hot water = 125 g
T = Final temperature of the mixture = ?
Therefore,

<u>T = 51.25°C</u>
This is either a trick question or a very hard one. In the first case: An electric field cannot occur inside a conductor (or by using the superposition principle you find out that at this point your electric fields cancel each other out)... Or you must use the laplace equation and proper boundary conditions to solve for the electrostatic potential
<span>Edit: Considering the center of mass of the plate is on the plate</span>
Fixed shape and fixed volume