What is the source of almost all energy on Earth? Earth’s hot core
the Sun
stored carbon
moving water

What is the source of almost all energy on Earth? the sun

the sun

Explanation:

to be honest as much as i would love to answer this. i feel as if something's missing. just saying.

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be