How would you calculate the average acceleration of a car that has a starting velocity of 5m/s, an ending velocity of 9m/s, and it changed velocity within 4 s?

This is what a calorimeter is used for simpler ex, to measure calories in food.

The best answer is (a) which is universal law is in effect at all times. it is constantly at play in everything we do and governs our lives. it is also important to note that universal law applies to not only everything on earth, but everything in the universe as well, which is another reason why it is in effect at all times.