A spring is attached horizontally to a wall and a block is attached on the other end. A person pulls the block by 0.15 meters. When the person
releases the spring. What is true about the block when it just let go.
The spring potential energy remains constant.
There is no kinetic energy.
All the energy becomes gravitational potential energy.
The spring potential energy is converted to kinetic energy.

Sorry i don’t know what to do

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j

Answer the radiant sun;