When two tectonic plates collide and form a converging plate boundry, normally one of the plates will slide underneath the other and that is when Subduction occurs.
Answer:

Explanation:
Flux is given by

A = Area

E = Electric field = 76.7 N/C
Angle is given by


The flux through the sheet is 
You're right, Answer C
The dust and gas accumulate to form a solar nebula, which later on creates the star and the planets.
Answer:
The value is 
Explanation:
From the question we are told that
The operating temperature is 
The emissivity is 
The power rating is 
Generally the area is mathematically represented as

Where
is the Stefan Boltzmann constant with value

So

