Answer:
magnification will be -0.025
Explanation:
We have given the radius of curvature = 12 cm
And object distance = 3 m
So focal length 
Now for mirror we know that
So 

v = 0.750 m
Now magnification of the mirror is 
First is melts then it expands next it gets cooler Finally it gains ener. Hope this helps you out.
Answer:
the last one: weight force
Answer:
Is this for zoommmmmmmmmm?
Explanation:
It had to be 20 letters I had to do something
They use x-rays to diagnose broken bones