Answer:
linear partial differential
Explanation:
The Schrödinger equation is a linear partial differential equation that describes the wave function or state function of a quantum-mechanical system. It is a key result in quantum mechanics, and its discovery was a significant landmark in the development of the subject.
Answer:

Explanation:
Given

Required
Convert to standard form

From laws of indices

So,
is equivalent to





Hence, the standard form of
is 
You are going to have to be more specific than that, perhaps add a picture next time ? Unfortunately, this question can’t be answered.
Answer:
"150000 N/m²" is the right approach.
Explanation:
According to the question, the pressure on the two spheres 1 and 2 is same.
Sphere 1 and 2:
Then,
⇒ 
⇒ 
and the bulk modulus be,
⇒ 
Sphere 3:
⇒ 
then,
⇒ 
⇒ 
⇒ 
⇒ 