Answer:
31.25
Explanation:
The formula for the potential energy of a spring is
, where x is the distance in meters the spring is stretched. Plugging in the numbers that you are given, you get
. Hope this helps!
Answer:
a)
, b) 
Explanation:
a) The potential energy is:



b) Maximum final speed:

The final speed is:


The human body is connected in every way. All the organs are connected and help each other be alive. For example, the veins are connected to the heart, which help it by pumping blood and oxygen. If they weren’t there, the heart wouldn’t be able to sustain a life.
I really hope this gave you and ideas and helped you in some way:)