I'm not sure but i would say C.storing the heat energy.
This is Bohrs model for potassium
Answer:
D. 1.2 cm
Explanation:
1st, determine the units. We see that our ruler is in cm.
This rules out A and C.
2nd, determine answer.
We see that the penny extends past 1 and ends at 0.2.
So, the total is 1.2 cm.
A joule times a second :)
