Plate Tectonics cause most earthquakes.
The object that goes through chemical change, changes completely to where you can not change it back to its original form. Physical change you can undo
Our values can be defined like this,



The problem can be solved for part A, through the Work Theorem that says the following,

Where
KE = Kinetic energy,
Given things like that and replacing we have that the work is given by
W = Fd
and kinetic energy by

So,

Clearing F,

Replacing the values


B) The work done by the wall is zero since there was no displacement of the wall, that is d = 0.
Answer:
The main use for gypsum is in the production of Plaster of Paris and drywall products. Gypsum is also used as a soil conditioner.
Explanation: