I'm pretty sure its simple! I hope this helps
<h2>
Answer:Displacement</h2>
Explanation:
Potential energy is present in a spring because the spring is elongated and some work is done it to elongate it.
The elastic potential energy present in a spring is given by 
where
is the spring constant.It may vary from spring to spring and
is the displacement of the spring from its equalibrium position.
It is evident from the equation that potential energy in the spring increases as
increases.
Answer:
1.1 Two poles: North and South Poles.
1.2 - Staple pin - Nail - Tip of my phone charger - Metal keys - Cloth Hanger
1.3 - Wooden bed cot - Plastic pen - Game pad - Wooden shelf - Paper - A T-shirt
1.4 Yes
1.5 No
Answer:
I think it would be C: open primary
Explanation: