How does an increase in thermal energy affect molecules?

The molecules become more active and they expand.

Step-by-step explanation:

The molecules tend to speed up and move faster throughout the substance once thermal energy increases. This is evident whenever we heat up water as its molecules tend to move faster throughout the water as thermal energy tends to increase.

Step-by-step explanation: Mark brainleists please

1,645,493,059.35

step-by-step explanation:

answer: the answer is 30 miles per hour.

ft/s -> mphmph = ft/s 1.466667mph = 44 divided by 1.466667mph = 30.00000

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