A reasonable hypothesis would be that, nothing changes with can A (no expansion at all), and Can C is expanding, but Can B is expanding even faster than Can C. (I don't know, if this hypothesis is correct though)
Answer:
The average speed would be the 200 miles/4 hours.
The average velocity would be the net displacement to the north at 80 miles/4 hrs = mph
Explanation:
It depends where its saying this. If its and advertisment then the purpose is to use health facts in order to persuade the reader to buy the fruit drink,if its in an artical then probably someone with a bias against soda is trying to convince you to switch to drinking fruit juice.
B) lowering the activation energy !
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hope it helps!
If the temperature is increased the particles gain more kinetic energy or vibrate faster. This means that they move faster and take more space.
