I can help but I can’t see the whole question :(
Let k be the spring constant. Then you have
188=k*21.8
k=188/21.8=8.62,
In the second part you use
m g= k x
x=m g/k= 38/8.62=4.4cm
4.4 cm is the answer
Answer:
oxygen
Explanation:
as it is in the air it can't be depleted or used up
"Silver" is the best electric conductor.
But as it is quite expensive, we use "Copper" & "Aluminium" for that purposes
Hope this helps!