The hearing curve shows temperature verses energy gain. Which parts of the curve represent a gain of potential energy

the answer for sodium is 0.186

the answer for rubidium is 0.251

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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