What's your question? is it seprete questions
Answer:
What Electricity questions?
Explanation:
C. Maintain correct Posture
Answer:
e=mc2 made to relate mass with energy . bcoz energy can neither b created nor b destroyed
The equation of motion of a pendulum is:
where 
it its length and 
is the gravitational acceleration. Notice that the mass is absent from the equation! This is quite hard to solve, but for <em>small</em> angles (
), we can use:
Additionally, let us define:
We can now write:
The solution to this differential equation is:
where 
and 
are constants to be determined using the initial conditions. Notice that they will not have any influence on the period, since it is given simply by:
This justifies that the period depends only on the pendulum's length.
